Home / 5,030.72-7,539.60-2,105.04

Finding the Fourth Proportional to 5,030.72, 7,539.60 and 2,105.04

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Solution

The fourth proportional to 5,030.72, 7,539.60 and 2,105.04 is: 3,154.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,030.72 : 7,539.60 = 2,105.04 : x
  2. Step 2: Convert to fraction form
    5,030.72/7,539.60 = 2,105.04/x
  3. Step 3: Cross multiply
    5,030.72x = 7,539.60 × 2,105.04
  4. Step 4: Simplify right side
    5,030.72x = 15,871,159.58
  5. Step 5: Solve for x
    x = 15,871,159.58/5,030.72
  6. Step 6: Final answer
    x = 3,154.85

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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.