Home / 3,915.87-5,873.46-1,142.55

Finding the Fourth Proportional to 3,915.87, 5,873.46 and 1,142.55

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Solution

The fourth proportional to 3,915.87, 5,873.46 and 1,142.55 is: 1,713.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,915.87 : 5,873.46 = 1,142.55 : x
  2. Step 2: Convert to fraction form
    3,915.87/5,873.46 = 1,142.55/x
  3. Step 3: Cross multiply
    3,915.87x = 5,873.46 × 1,142.55
  4. Step 4: Simplify right side
    3,915.87x = 6,710,721.72
  5. Step 5: Solve for x
    x = 6,710,721.72/3,915.87
  6. Step 6: Final answer
    x = 1,713.72

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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.