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Finding the Fourth Proportional to 4,565.12, 6,848.12 and 1,278.21

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Solution

The fourth proportional to 4,565.12, 6,848.12 and 1,278.21 is: 1,917.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,565.12 : 6,848.12 = 1,278.21 : x
  2. Step 2: Convert to fraction form
    4,565.12/6,848.12 = 1,278.21/x
  3. Step 3: Cross multiply
    4,565.12x = 6,848.12 × 1,278.21
  4. Step 4: Simplify right side
    4,565.12x = 8,753,338.66
  5. Step 5: Solve for x
    x = 8,753,338.66/4,565.12
  6. Step 6: Final answer
    x = 1,917.44

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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.