Home / 7,475.78-11,215.36-2,281.26

Finding the Fourth Proportional to 7,475.78, 11,215.36 and 2,281.26

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Solution

The fourth proportional to 7,475.78, 11,215.36 and 2,281.26 is: 3,422.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,475.78 : 11,215.36 = 2,281.26 : x
  2. Step 2: Convert to fraction form
    7,475.78/11,215.36 = 2,281.26/x
  3. Step 3: Cross multiply
    7,475.78x = 11,215.36 × 2,281.26
  4. Step 4: Simplify right side
    7,475.78x = 25,585,152.15
  5. Step 5: Solve for x
    x = 25,585,152.15/7,475.78
  6. Step 6: Final answer
    x = 3,422.41

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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.