Home / 3,637.80-5,456.70-2,658.60

Finding the Fourth Proportional to 3,637.80, 5,456.70 and 2,658.60

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Solution

The fourth proportional to 3,637.80, 5,456.70 and 2,658.60 is: 3,987.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,637.80 : 5,456.70 = 2,658.60 : x
  2. Step 2: Convert to fraction form
    3,637.80/5,456.70 = 2,658.60/x
  3. Step 3: Cross multiply
    3,637.80x = 5,456.70 × 2,658.60
  4. Step 4: Simplify right side
    3,637.80x = 14,507,182.62
  5. Step 5: Solve for x
    x = 14,507,182.62/3,637.80
  6. Step 6: Final answer
    x = 3,987.90

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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.