Home / 2,712.47-4,070.37-1,251.74

Finding the Fourth Proportional to 2,712.47, 4,070.37 and 1,251.74

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Solution

The fourth proportional to 2,712.47, 4,070.37 and 1,251.74 is: 1,878.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,712.47 : 4,070.37 = 1,251.74 : x
  2. Step 2: Convert to fraction form
    2,712.47/4,070.37 = 1,251.74/x
  3. Step 3: Cross multiply
    2,712.47x = 4,070.37 × 1,251.74
  4. Step 4: Simplify right side
    2,712.47x = 5,095,024.59
  5. Step 5: Solve for x
    x = 5,095,024.59/2,712.47
  6. Step 6: Final answer
    x = 1,878.37

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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.