Home / 7,217.80-9,959.56-4,030.65

Finding the Fourth Proportional to 7,217.80, 9,959.56 and 4,030.65

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Solution

The fourth proportional to 7,217.80, 9,959.56 and 4,030.65 is: 5,561.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,217.80 : 9,959.56 = 4,030.65 : x
  2. Step 2: Convert to fraction form
    7,217.80/9,959.56 = 4,030.65/x
  3. Step 3: Cross multiply
    7,217.80x = 9,959.56 × 4,030.65
  4. Step 4: Simplify right side
    7,217.80x = 40,143,490.44
  5. Step 5: Solve for x
    x = 40,143,490.44/7,217.80
  6. Step 6: Final answer
    x = 5,561.74

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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.