Home / 1,655.61-2,479.01-1,327.23

Finding the Fourth Proportional to 1,655.61, 2,479.01 and 1,327.23

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Solution

The fourth proportional to 1,655.61, 2,479.01 and 1,327.23 is: 1,987.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,655.61 : 2,479.01 = 1,327.23 : x
  2. Step 2: Convert to fraction form
    1,655.61/2,479.01 = 1,327.23/x
  3. Step 3: Cross multiply
    1,655.61x = 2,479.01 × 1,327.23
  4. Step 4: Simplify right side
    1,655.61x = 3,290,202.83
  5. Step 5: Solve for x
    x = 3,290,202.83/1,655.61
  6. Step 6: Final answer
    x = 1,987.30

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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.