Home / 3,312.20-4,567.92-2,719.28

Finding the Fourth Proportional to 3,312.20, 4,567.92 and 2,719.28

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Solution

The fourth proportional to 3,312.20, 4,567.92 and 2,719.28 is: 3,750.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,312.20 : 4,567.92 = 2,719.28 : x
  2. Step 2: Convert to fraction form
    3,312.20/4,567.92 = 2,719.28/x
  3. Step 3: Cross multiply
    3,312.20x = 4,567.92 × 2,719.28
  4. Step 4: Simplify right side
    3,312.20x = 12,421,453.50
  5. Step 5: Solve for x
    x = 12,421,453.50/3,312.20
  6. Step 6: Final answer
    x = 3,750.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.