Home / 5,015.28-7,518.60-2,420.04

Finding the Fourth Proportional to 5,015.28, 7,518.60 and 2,420.04

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Solution

The fourth proportional to 5,015.28, 7,518.60 and 2,420.04 is: 3,627.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,015.28 : 7,518.60 = 2,420.04 : x
  2. Step 2: Convert to fraction form
    5,015.28/7,518.60 = 2,420.04/x
  3. Step 3: Cross multiply
    5,015.28x = 7,518.60 × 2,420.04
  4. Step 4: Simplify right side
    5,015.28x = 18,195,312.74
  5. Step 5: Solve for x
    x = 18,195,312.74/5,015.28
  6. Step 6: Final answer
    x = 3,627.98

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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.