Home / 1,021.09-1,531.60-337.09

Finding the Fourth Proportional to 1,021.09, 1,531.60 and 337.09

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Solution

The fourth proportional to 1,021.09, 1,531.60 and 337.09 is: 505.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021.09 : 1,531.60 = 337.09 : x
  2. Step 2: Convert to fraction form
    1,021.09/1,531.60 = 337.09/x
  3. Step 3: Cross multiply
    1,021.09x = 1,531.60 × 337.09
  4. Step 4: Simplify right side
    1,021.09x = 516,287.04
  5. Step 5: Solve for x
    x = 516,287.04/1,021.09
  6. Step 6: Final answer
    x = 505.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.