Home / 4,165.02-6,248.15-1,390.90

Finding the Fourth Proportional to 4,165.02, 6,248.15 and 1,390.90

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Solution

The fourth proportional to 4,165.02, 6,248.15 and 1,390.90 is: 2,086.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,165.02 : 6,248.15 = 1,390.90 : x
  2. Step 2: Convert to fraction form
    4,165.02/6,248.15 = 1,390.90/x
  3. Step 3: Cross multiply
    4,165.02x = 6,248.15 × 1,390.90
  4. Step 4: Simplify right side
    4,165.02x = 8,690,551.84
  5. Step 5: Solve for x
    x = 8,690,551.84/4,165.02
  6. Step 6: Final answer
    x = 2,086.56

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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.