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Finding the Fourth Proportional to 6,487.68, 8,952.48 and 3,835.20

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Solution

The fourth proportional to 6,487.68, 8,952.48 and 3,835.20 is: 5,292.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,487.68 : 8,952.48 = 3,835.20 : x
  2. Step 2: Convert to fraction form
    6,487.68/8,952.48 = 3,835.20/x
  3. Step 3: Cross multiply
    6,487.68x = 8,952.48 × 3,835.20
  4. Step 4: Simplify right side
    6,487.68x = 34,334,551.30
  5. Step 5: Solve for x
    x = 34,334,551.30/6,487.68
  6. Step 6: Final answer
    x = 5,292.27

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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.