Home / 1,637.46-2,451.60-1,276.47

Finding the Fourth Proportional to 1,637.46, 2,451.60 and 1,276.47

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Solution

The fourth proportional to 1,637.46, 2,451.60 and 1,276.47 is: 1,911.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,637.46 : 2,451.60 = 1,276.47 : x
  2. Step 2: Convert to fraction form
    1,637.46/2,451.60 = 1,276.47/x
  3. Step 3: Cross multiply
    1,637.46x = 2,451.60 × 1,276.47
  4. Step 4: Simplify right side
    1,637.46x = 3,129,393.85
  5. Step 5: Solve for x
    x = 3,129,393.85/1,637.46
  6. Step 6: Final answer
    x = 1,911.13

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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.