Home / 1,021.39-1,532.10-444.25

Finding the Fourth Proportional to 1,021.39, 1,532.10 and 444.25

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Solution

The fourth proportional to 1,021.39, 1,532.10 and 444.25 is: 666.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021.39 : 1,532.10 = 444.25 : x
  2. Step 2: Convert to fraction form
    1,021.39/1,532.10 = 444.25/x
  3. Step 3: Cross multiply
    1,021.39x = 1,532.10 × 444.25
  4. Step 4: Simplify right side
    1,021.39x = 680,635.43
  5. Step 5: Solve for x
    x = 680,635.43/1,021.39
  6. Step 6: Final answer
    x = 666.38

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Double scale
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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.