Home / 7,540.90-10,407.69-4,397.09

Finding the Fourth Proportional to 7,540.90, 10,407.69 and 4,397.09

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Solution

The fourth proportional to 7,540.90, 10,407.69 and 4,397.09 is: 6,068.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,540.90 : 10,407.69 = 4,397.09 : x
  2. Step 2: Convert to fraction form
    7,540.90/10,407.69 = 4,397.09/x
  3. Step 3: Cross multiply
    7,540.90x = 10,407.69 × 4,397.09
  4. Step 4: Simplify right side
    7,540.90x = 45,763,497.58
  5. Step 5: Solve for x
    x = 45,763,497.58/7,540.90
  6. Step 6: Final answer
    x = 6,068.71

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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.