Home / 6,458.31-8,911.92-3,587.13

Finding the Fourth Proportional to 6,458.31, 8,911.92 and 3,587.13

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Solution

The fourth proportional to 6,458.31, 8,911.92 and 3,587.13 is: 4,949.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,458.31 : 8,911.92 = 3,587.13 : x
  2. Step 2: Convert to fraction form
    6,458.31/8,911.92 = 3,587.13/x
  3. Step 3: Cross multiply
    6,458.31x = 8,911.92 × 3,587.13
  4. Step 4: Simplify right side
    6,458.31x = 31,968,215.59
  5. Step 5: Solve for x
    x = 31,968,215.59/6,458.31
  6. Step 6: Final answer
    x = 4,949.94

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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.