Home / 3,750.87-5,176.53-2,489.70

Finding the Fourth Proportional to 3,750.87, 5,176.53 and 2,489.70

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Solution

The fourth proportional to 3,750.87, 5,176.53 and 2,489.70 is: 3,436.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,750.87 : 5,176.53 = 2,489.70 : x
  2. Step 2: Convert to fraction form
    3,750.87/5,176.53 = 2,489.70/x
  3. Step 3: Cross multiply
    3,750.87x = 5,176.53 × 2,489.70
  4. Step 4: Simplify right side
    3,750.87x = 12,888,006.74
  5. Step 5: Solve for x
    x = 12,888,006.74/3,750.87
  6. Step 6: Final answer
    x = 3,436.00

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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.