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Finding the Fourth Proportional to 2,543.76, 3,510.19 and 1,424.44

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Solution

The fourth proportional to 2,543.76, 3,510.19 and 1,424.44 is: 1,965.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,543.76 : 3,510.19 = 1,424.44 : x
  2. Step 2: Convert to fraction form
    2,543.76/3,510.19 = 1,424.44/x
  3. Step 3: Cross multiply
    2,543.76x = 3,510.19 × 1,424.44
  4. Step 4: Simplify right side
    2,543.76x = 5,000,042.71
  5. Step 5: Solve for x
    x = 5,000,042.71/2,543.76
  6. Step 6: Final answer
    x = 1,965.61

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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.