Home / 2,543.47-3,510.21-1,424.39

Finding the Fourth Proportional to 2,543.47, 3,510.21 and 1,424.39

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Solution

The fourth proportional to 2,543.47, 3,510.21 and 1,424.39 is: 1,965.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,543.47 : 3,510.21 = 1,424.39 : x
  2. Step 2: Convert to fraction form
    2,543.47/3,510.21 = 1,424.39/x
  3. Step 3: Cross multiply
    2,543.47x = 3,510.21 × 1,424.39
  4. Step 4: Simplify right side
    2,543.47x = 4,999,883.35
  5. Step 5: Solve for x
    x = 4,999,883.35/2,543.47
  6. Step 6: Final answer
    x = 1,965.78

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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.