Home / 2,637.40-3,957.90-1,177.60

Finding the Fourth Proportional to 2,637.40, 3,957.90 and 1,177.60

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Solution

The fourth proportional to 2,637.40, 3,957.90 and 1,177.60 is: 1,767.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,637.40 : 3,957.90 = 1,177.60 : x
  2. Step 2: Convert to fraction form
    2,637.40/3,957.90 = 1,177.60/x
  3. Step 3: Cross multiply
    2,637.40x = 3,957.90 × 1,177.60
  4. Step 4: Simplify right side
    2,637.40x = 4,660,823.04
  5. Step 5: Solve for x
    x = 4,660,823.04/2,637.40
  6. Step 6: Final answer
    x = 1,767.20

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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.