Home / 7,340.40-10,129.76-4,196.66

Finding the Fourth Proportional to 7,340.40, 10,129.76 and 4,196.66

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Solution

The fourth proportional to 7,340.40, 10,129.76 and 4,196.66 is: 5,791.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,340.40 : 10,129.76 = 4,196.66 : x
  2. Step 2: Convert to fraction form
    7,340.40/10,129.76 = 4,196.66/x
  3. Step 3: Cross multiply
    7,340.40x = 10,129.76 × 4,196.66
  4. Step 4: Simplify right side
    7,340.40x = 42,511,158.60
  5. Step 5: Solve for x
    x = 42,511,158.60/7,340.40
  6. Step 6: Final answer
    x = 5,791.40

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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.