Home / 7,042.32-9,719.40-4,455.48

Finding the Fourth Proportional to 7,042.32, 9,719.40 and 4,455.48

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Solution

The fourth proportional to 7,042.32, 9,719.40 and 4,455.48 is: 6,149.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,042.32 : 9,719.40 = 4,455.48 : x
  2. Step 2: Convert to fraction form
    7,042.32/9,719.40 = 4,455.48/x
  3. Step 3: Cross multiply
    7,042.32x = 9,719.40 × 4,455.48
  4. Step 4: Simplify right side
    7,042.32x = 43,304,592.31
  5. Step 5: Solve for x
    x = 43,304,592.31/7,042.32
  6. Step 6: Final answer
    x = 6,149.19

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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.