Home / 7,180.24-9,908.68-4,036.40

Finding the Fourth Proportional to 7,180.24, 9,908.68 and 4,036.40

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Solution

The fourth proportional to 7,180.24, 9,908.68 and 4,036.40 is: 5,570.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,180.24 : 9,908.68 = 4,036.40 : x
  2. Step 2: Convert to fraction form
    7,180.24/9,908.68 = 4,036.40/x
  3. Step 3: Cross multiply
    7,180.24x = 9,908.68 × 4,036.40
  4. Step 4: Simplify right side
    7,180.24x = 39,995,395.95
  5. Step 5: Solve for x
    x = 39,995,395.95/7,180.24
  6. Step 6: Final answer
    x = 5,570.20

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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.