Home / 1,143.59-1,581.26-1,125.06

Finding the Fourth Proportional to 1,143.59, 1,581.26 and 1,125.06

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Solution

The fourth proportional to 1,143.59, 1,581.26 and 1,125.06 is: 1,555.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,143.59 : 1,581.26 = 1,125.06 : x
  2. Step 2: Convert to fraction form
    1,143.59/1,581.26 = 1,125.06/x
  3. Step 3: Cross multiply
    1,143.59x = 1,581.26 × 1,125.06
  4. Step 4: Simplify right side
    1,143.59x = 1,779,012.38
  5. Step 5: Solve for x
    x = 1,779,012.38/1,143.59
  6. Step 6: Final answer
    x = 1,555.64

Related Problems

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Half scale
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Double scale
Find fourth proportional to 1,144.59, 1,582.64 and 1,126.06
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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.