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Finding the Fourth Proportional to 3,117.87, 4,658.53 and 3,008.86

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Solution

The fourth proportional to 3,117.87, 4,658.53 and 3,008.86 is: 4,495.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,117.87 : 4,658.53 = 3,008.86 : x
  2. Step 2: Convert to fraction form
    3,117.87/4,658.53 = 3,008.86/x
  3. Step 3: Cross multiply
    3,117.87x = 4,658.53 × 3,008.86
  4. Step 4: Simplify right side
    3,117.87x = 14,016,864.58
  5. Step 5: Solve for x
    x = 14,016,864.58/3,117.87
  6. Step 6: Final answer
    x = 4,495.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.