Home / 5,587.64-8,378.20-2,989.16

Finding the Fourth Proportional to 5,587.64, 8,378.20 and 2,989.16

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Solution

The fourth proportional to 5,587.64, 8,378.20 and 2,989.16 is: 4,482.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,587.64 : 8,378.20 = 2,989.16 : x
  2. Step 2: Convert to fraction form
    5,587.64/8,378.20 = 2,989.16/x
  3. Step 3: Cross multiply
    5,587.64x = 8,378.20 × 2,989.16
  4. Step 4: Simplify right side
    5,587.64x = 25,043,780.31
  5. Step 5: Solve for x
    x = 25,043,780.31/5,587.64
  6. Step 6: Final answer
    x = 4,482.00

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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.