Home / 1,581.39-2,182.33-882.77

Finding the Fourth Proportional to 1,581.39, 2,182.33 and 882.77

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Solution

The fourth proportional to 1,581.39, 2,182.33 and 882.77 is: 1,218.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,581.39 : 2,182.33 = 882.77 : x
  2. Step 2: Convert to fraction form
    1,581.39/2,182.33 = 882.77/x
  3. Step 3: Cross multiply
    1,581.39x = 2,182.33 × 882.77
  4. Step 4: Simplify right side
    1,581.39x = 1,926,487.79
  5. Step 5: Solve for x
    x = 1,926,487.79/1,581.39
  6. Step 6: Final answer
    x = 1,218.22

Related Problems

Find fourth proportional to 790.70, 1,091.16 and 441.38
Half scale
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Double scale
Find fourth proportional to 1,582.39, 2,183.71 and 883.77
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.