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Finding the Fourth Proportional to 2,543.68, 3,509.22 and 1,548.16

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Solution

The fourth proportional to 2,543.68, 3,509.22 and 1,548.16 is: 2,135.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,543.68 : 3,509.22 = 1,548.16 : x
  2. Step 2: Convert to fraction form
    2,543.68/3,509.22 = 1,548.16/x
  3. Step 3: Cross multiply
    2,543.68x = 3,509.22 × 1,548.16
  4. Step 4: Simplify right side
    2,543.68x = 5,432,834.04
  5. Step 5: Solve for x
    x = 5,432,834.04/2,543.68
  6. Step 6: Final answer
    x = 2,135.82

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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.