Home / 7,401.31-11,101.86-1,854.64

Finding the Fourth Proportional to 7,401.31, 11,101.86 and 1,854.64

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Solution

The fourth proportional to 7,401.31, 11,101.86 and 1,854.64 is: 2,781.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,401.31 : 11,101.86 = 1,854.64 : x
  2. Step 2: Convert to fraction form
    7,401.31/11,101.86 = 1,854.64/x
  3. Step 3: Cross multiply
    7,401.31x = 11,101.86 × 1,854.64
  4. Step 4: Simplify right side
    7,401.31x = 20,589,953.63
  5. Step 5: Solve for x
    x = 20,589,953.63/7,401.31
  6. Step 6: Final answer
    x = 2,781.93

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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.