Home / 6,840.28-10,256.76-3,545.20

Finding the Fourth Proportional to 6,840.28, 10,256.76 and 3,545.20

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Solution

The fourth proportional to 6,840.28, 10,256.76 and 3,545.20 is: 5,315.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,840.28 : 10,256.76 = 3,545.20 : x
  2. Step 2: Convert to fraction form
    6,840.28/10,256.76 = 3,545.20/x
  3. Step 3: Cross multiply
    6,840.28x = 10,256.76 × 3,545.20
  4. Step 4: Simplify right side
    6,840.28x = 36,362,265.55
  5. Step 5: Solve for x
    x = 36,362,265.55/6,840.28
  6. Step 6: Final answer
    x = 5,315.90

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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.