Home / 1,307.92-1,962.66-528.30

Finding the Fourth Proportional to 1,307.92, 1,962.66 and 528.30

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Solution

The fourth proportional to 1,307.92, 1,962.66 and 528.30 is: 792.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,307.92 : 1,962.66 = 528.30 : x
  2. Step 2: Convert to fraction form
    1,307.92/1,962.66 = 528.30/x
  3. Step 3: Cross multiply
    1,307.92x = 1,962.66 × 528.30
  4. Step 4: Simplify right side
    1,307.92x = 1,036,873.28
  5. Step 5: Solve for x
    x = 1,036,873.28/1,307.92
  6. Step 6: Final answer
    x = 792.77

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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.