Home / 6,721.40-9,274.47-3,737.22

Finding the Fourth Proportional to 6,721.40, 9,274.47 and 3,737.22

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Solution

The fourth proportional to 6,721.40, 9,274.47 and 3,737.22 is: 5,156.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,721.40 : 9,274.47 = 3,737.22 : x
  2. Step 2: Convert to fraction form
    6,721.40/9,274.47 = 3,737.22/x
  3. Step 3: Cross multiply
    6,721.40x = 9,274.47 × 3,737.22
  4. Step 4: Simplify right side
    6,721.40x = 34,660,734.77
  5. Step 5: Solve for x
    x = 34,660,734.77/6,721.40
  6. Step 6: Final answer
    x = 5,156.78

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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.