Home / 7,135.32-10,708.38-3,242.40

Finding the Fourth Proportional to 7,135.32, 10,708.38 and 3,242.40

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Solution

The fourth proportional to 7,135.32, 10,708.38 and 3,242.40 is: 4,866.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,135.32 : 10,708.38 = 3,242.40 : x
  2. Step 2: Convert to fraction form
    7,135.32/10,708.38 = 3,242.40/x
  3. Step 3: Cross multiply
    7,135.32x = 10,708.38 × 3,242.40
  4. Step 4: Simplify right side
    7,135.32x = 34,720,851.31
  5. Step 5: Solve for x
    x = 34,720,851.31/7,135.32
  6. Step 6: Final answer
    x = 4,866.05

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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.