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Finding the Fourth Proportional to 6,306.32, 9,459.12 and 3,390.32

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Solution

The fourth proportional to 6,306.32, 9,459.12 and 3,390.32 is: 5,085.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,306.32 : 9,459.12 = 3,390.32 : x
  2. Step 2: Convert to fraction form
    6,306.32/9,459.12 = 3,390.32/x
  3. Step 3: Cross multiply
    6,306.32x = 9,459.12 × 3,390.32
  4. Step 4: Simplify right side
    6,306.32x = 32,069,443.72
  5. Step 5: Solve for x
    x = 32,069,443.72/6,306.32
  6. Step 6: Final answer
    x = 5,085.29

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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.