Home / 7,278.12-10,042.98-4,091.64

Finding the Fourth Proportional to 7,278.12, 10,042.98 and 4,091.64

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Solution

The fourth proportional to 7,278.12, 10,042.98 and 4,091.64 is: 5,646.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,278.12 : 10,042.98 = 4,091.64 : x
  2. Step 2: Convert to fraction form
    7,278.12/10,042.98 = 4,091.64/x
  3. Step 3: Cross multiply
    7,278.12x = 10,042.98 × 4,091.64
  4. Step 4: Simplify right side
    7,278.12x = 41,092,258.69
  5. Step 5: Solve for x
    x = 41,092,258.69/7,278.12
  6. Step 6: Final answer
    x = 5,646.00

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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.