Home / 5,737.20-7,910.88-3,970.08

Finding the Fourth Proportional to 5,737.20, 7,910.88 and 3,970.08

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Solution

The fourth proportional to 5,737.20, 7,910.88 and 3,970.08 is: 5,474.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,737.20 : 7,910.88 = 3,970.08 : x
  2. Step 2: Convert to fraction form
    5,737.20/7,910.88 = 3,970.08/x
  3. Step 3: Cross multiply
    5,737.20x = 7,910.88 × 3,970.08
  4. Step 4: Simplify right side
    5,737.20x = 31,406,826.47
  5. Step 5: Solve for x
    x = 31,406,826.47/5,737.20
  6. Step 6: Final answer
    x = 5,474.24

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1.5x scale

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.