Home / 2,322.20-3,477.90-1,587.80

Finding the Fourth Proportional to 2,322.20, 3,477.90 and 1,587.80

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Solution

The fourth proportional to 2,322.20, 3,477.90 and 1,587.80 is: 2,378.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,322.20 : 3,477.90 = 1,587.80 : x
  2. Step 2: Convert to fraction form
    2,322.20/3,477.90 = 1,587.80/x
  3. Step 3: Cross multiply
    2,322.20x = 3,477.90 × 1,587.80
  4. Step 4: Simplify right side
    2,322.20x = 5,522,209.62
  5. Step 5: Solve for x
    x = 5,522,209.62/2,322.20
  6. Step 6: Final answer
    x = 2,378.01

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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.