Home / 5,371.80-7,412.97-2,981.63

Finding the Fourth Proportional to 5,371.80, 7,412.97 and 2,981.63

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Solution

The fourth proportional to 5,371.80, 7,412.97 and 2,981.63 is: 4,114.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,371.80 : 7,412.97 = 2,981.63 : x
  2. Step 2: Convert to fraction form
    5,371.80/7,412.97 = 2,981.63/x
  3. Step 3: Cross multiply
    5,371.80x = 7,412.97 × 2,981.63
  4. Step 4: Simplify right side
    5,371.80x = 22,102,737.37
  5. Step 5: Solve for x
    x = 22,102,737.37/5,371.80
  6. Step 6: Final answer
    x = 4,114.59

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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.