Home / 2,157.46-3,240.80-1,545.10

Finding the Fourth Proportional to 2,157.46, 3,240.80 and 1,545.10

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Solution

The fourth proportional to 2,157.46, 3,240.80 and 1,545.10 is: 2,320.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,157.46 : 3,240.80 = 1,545.10 : x
  2. Step 2: Convert to fraction form
    2,157.46/3,240.80 = 1,545.10/x
  3. Step 3: Cross multiply
    2,157.46x = 3,240.80 × 1,545.10
  4. Step 4: Simplify right side
    2,157.46x = 5,007,360.08
  5. Step 5: Solve for x
    x = 5,007,360.08/2,157.46
  6. Step 6: Final answer
    x = 2,320.95

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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.