Home / 1,581.49-2,182.30-882.91

Finding the Fourth Proportional to 1,581.49, 2,182.30 and 882.91

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Solution

The fourth proportional to 1,581.49, 2,182.30 and 882.91 is: 1,218.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,581.49 : 2,182.30 = 882.91 : x
  2. Step 2: Convert to fraction form
    1,581.49/2,182.30 = 882.91/x
  3. Step 3: Cross multiply
    1,581.49x = 2,182.30 × 882.91
  4. Step 4: Simplify right side
    1,581.49x = 1,926,774.49
  5. Step 5: Solve for x
    x = 1,926,774.49/1,581.49
  6. Step 6: Final answer
    x = 1,218.33

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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.