Home / 7,334.39-10,121.45-3,977.18

Finding the Fourth Proportional to 7,334.39, 10,121.45 and 3,977.18

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Solution

The fourth proportional to 7,334.39, 10,121.45 and 3,977.18 is: 5,488.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,334.39 : 10,121.45 = 3,977.18 : x
  2. Step 2: Convert to fraction form
    7,334.39/10,121.45 = 3,977.18/x
  3. Step 3: Cross multiply
    7,334.39x = 10,121.45 × 3,977.18
  4. Step 4: Simplify right side
    7,334.39x = 40,254,758.02
  5. Step 5: Solve for x
    x = 40,254,758.02/7,334.39
  6. Step 6: Final answer
    x = 5,488.50

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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.