Home / 1,657.20-2,483.15-615.77

Finding the Fourth Proportional to 1,657.20, 2,483.15 and 615.77

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Solution

The fourth proportional to 1,657.20, 2,483.15 and 615.77 is: 922.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,657.20 : 2,483.15 = 615.77 : x
  2. Step 2: Convert to fraction form
    1,657.20/2,483.15 = 615.77/x
  3. Step 3: Cross multiply
    1,657.20x = 2,483.15 × 615.77
  4. Step 4: Simplify right side
    1,657.20x = 1,529,033.78
  5. Step 5: Solve for x
    x = 1,529,033.78/1,657.20
  6. Step 6: Final answer
    x = 922.66

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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.