Home / 3,856.02-5,783.85-1,545.90

Finding the Fourth Proportional to 3,856.02, 5,783.85 and 1,545.90

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Solution

The fourth proportional to 3,856.02, 5,783.85 and 1,545.90 is: 2,318.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,856.02 : 5,783.85 = 1,545.90 : x
  2. Step 2: Convert to fraction form
    3,856.02/5,783.85 = 1,545.90/x
  3. Step 3: Cross multiply
    3,856.02x = 5,783.85 × 1,545.90
  4. Step 4: Simplify right side
    3,856.02x = 8,941,253.72
  5. Step 5: Solve for x
    x = 8,941,253.72/3,856.02
  6. Step 6: Final answer
    x = 2,318.78

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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.