Home / 4,987.60-7,479.72-2,025.28

Finding the Fourth Proportional to 4,987.60, 7,479.72 and 2,025.28

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Solution

The fourth proportional to 4,987.60, 7,479.72 and 2,025.28 is: 3,037.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,987.60 : 7,479.72 = 2,025.28 : x
  2. Step 2: Convert to fraction form
    4,987.60/7,479.72 = 2,025.28/x
  3. Step 3: Cross multiply
    4,987.60x = 7,479.72 × 2,025.28
  4. Step 4: Simplify right side
    4,987.60x = 15,148,527.32
  5. Step 5: Solve for x
    x = 15,148,527.32/4,987.60
  6. Step 6: Final answer
    x = 3,037.24

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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.