Home / 3,753.95-5,629.55-1,288.13

Finding the Fourth Proportional to 3,753.95, 5,629.55 and 1,288.13

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Solution

The fourth proportional to 3,753.95, 5,629.55 and 1,288.13 is: 1,931.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,753.95 : 5,629.55 = 1,288.13 : x
  2. Step 2: Convert to fraction form
    3,753.95/5,629.55 = 1,288.13/x
  3. Step 3: Cross multiply
    3,753.95x = 5,629.55 × 1,288.13
  4. Step 4: Simplify right side
    3,753.95x = 7,251,557.65
  5. Step 5: Solve for x
    x = 7,251,557.65/3,753.95
  6. Step 6: Final answer
    x = 1,931.72

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1.5x scale

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.