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Finding the Fourth Proportional to 6,342.18, 8,752.20 and 3,547.68

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Solution

The fourth proportional to 6,342.18, 8,752.20 and 3,547.68 is: 4,895.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,342.18 : 8,752.20 = 3,547.68 : x
  2. Step 2: Convert to fraction form
    6,342.18/8,752.20 = 3,547.68/x
  3. Step 3: Cross multiply
    6,342.18x = 8,752.20 × 3,547.68
  4. Step 4: Simplify right side
    6,342.18x = 31,050,004.90
  5. Step 5: Solve for x
    x = 31,050,004.90/6,342.18
  6. Step 6: Final answer
    x = 4,895.79

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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.