Home / 7,180.14-9,908.40-4,036.53

Finding the Fourth Proportional to 7,180.14, 9,908.40 and 4,036.53

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Solution

The fourth proportional to 7,180.14, 9,908.40 and 4,036.53 is: 5,570.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,180.14 : 9,908.40 = 4,036.53 : x
  2. Step 2: Convert to fraction form
    7,180.14/9,908.40 = 4,036.53/x
  3. Step 3: Cross multiply
    7,180.14x = 9,908.40 × 4,036.53
  4. Step 4: Simplify right side
    7,180.14x = 39,995,553.85
  5. Step 5: Solve for x
    x = 39,995,553.85/7,180.14
  6. Step 6: Final answer
    x = 5,570.30

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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.