Home / 5,139.03-7,708.55-4,737.78

Finding the Fourth Proportional to 5,139.03, 7,708.55 and 4,737.78

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Solution

The fourth proportional to 5,139.03, 7,708.55 and 4,737.78 is: 7,106.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,139.03 : 7,708.55 = 4,737.78 : x
  2. Step 2: Convert to fraction form
    5,139.03/7,708.55 = 4,737.78/x
  3. Step 3: Cross multiply
    5,139.03x = 7,708.55 × 4,737.78
  4. Step 4: Simplify right side
    5,139.03x = 36,521,414.02
  5. Step 5: Solve for x
    x = 36,521,414.02/5,139.03
  6. Step 6: Final answer
    x = 7,106.67

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1.5x scale

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.