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Finding the Fourth Proportional to 6,471.54, 9,707.40 and 1,854.54

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Solution

The fourth proportional to 6,471.54, 9,707.40 and 1,854.54 is: 2,781.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,471.54 : 9,707.40 = 1,854.54 : x
  2. Step 2: Convert to fraction form
    6,471.54/9,707.40 = 1,854.54/x
  3. Step 3: Cross multiply
    6,471.54x = 9,707.40 × 1,854.54
  4. Step 4: Simplify right side
    6,471.54x = 18,002,761.60
  5. Step 5: Solve for x
    x = 18,002,761.60/6,471.54
  6. Step 6: Final answer
    x = 2,781.84

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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.