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Finding the Fourth Proportional to 4,612.91, 6,917.92 and 1,325.12

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Solution

The fourth proportional to 4,612.91, 6,917.92 and 1,325.12 is: 1,987.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,612.91 : 6,917.92 = 1,325.12 : x
  2. Step 2: Convert to fraction form
    4,612.91/6,917.92 = 1,325.12/x
  3. Step 3: Cross multiply
    4,612.91x = 6,917.92 × 1,325.12
  4. Step 4: Simplify right side
    4,612.91x = 9,167,036.25
  5. Step 5: Solve for x
    x = 9,167,036.25/4,612.91
  6. Step 6: Final answer
    x = 1,987.26

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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.