Home / 6,275.20-9,412.28-2,115.11

Finding the Fourth Proportional to 6,275.20, 9,412.28 and 2,115.11

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Solution

The fourth proportional to 6,275.20, 9,412.28 and 2,115.11 is: 3,172.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,275.20 : 9,412.28 = 2,115.11 : x
  2. Step 2: Convert to fraction form
    6,275.20/9,412.28 = 2,115.11/x
  3. Step 3: Cross multiply
    6,275.20x = 9,412.28 × 2,115.11
  4. Step 4: Simplify right side
    6,275.20x = 19,908,020.51
  5. Step 5: Solve for x
    x = 19,908,020.51/6,275.20
  6. Step 6: Final answer
    x = 3,172.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.