Home / 5,257.28-7,256.53-3,685.76

Finding the Fourth Proportional to 5,257.28, 7,256.53 and 3,685.76

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Solution

The fourth proportional to 5,257.28, 7,256.53 and 3,685.76 is: 5,087.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,257.28 : 7,256.53 = 3,685.76 : x
  2. Step 2: Convert to fraction form
    5,257.28/7,256.53 = 3,685.76/x
  3. Step 3: Cross multiply
    5,257.28x = 7,256.53 × 3,685.76
  4. Step 4: Simplify right side
    5,257.28x = 26,745,782.52
  5. Step 5: Solve for x
    x = 26,745,782.52/5,257.28
  6. Step 6: Final answer
    x = 5,087.39

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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.