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Finding the Fourth Proportional to 6,688.08, 9,207 and 5,798.88

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Solution

The fourth proportional to 6,688.08, 9,207 and 5,798.88 is: 7,982.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,688.08 : 9,207 = 5,798.88 : x
  2. Step 2: Convert to fraction form
    6,688.08/9,207 = 5,798.88/x
  3. Step 3: Cross multiply
    6,688.08x = 9,207 × 5,798.88
  4. Step 4: Simplify right side
    6,688.08x = 53,390,288.16
  5. Step 5: Solve for x
    x = 53,390,288.16/6,688.08
  6. Step 6: Final answer
    x = 7,982.90

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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.