Home / 6,385.19-8,807.60-3,731.63

Finding the Fourth Proportional to 6,385.19, 8,807.60 and 3,731.63

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Solution

The fourth proportional to 6,385.19, 8,807.60 and 3,731.63 is: 5,147.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,385.19 : 8,807.60 = 3,731.63 : x
  2. Step 2: Convert to fraction form
    6,385.19/8,807.60 = 3,731.63/x
  3. Step 3: Cross multiply
    6,385.19x = 8,807.60 × 3,731.63
  4. Step 4: Simplify right side
    6,385.19x = 32,866,641.69
  5. Step 5: Solve for x
    x = 32,866,641.69/6,385.19
  6. Step 6: Final answer
    x = 5,147.33

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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.