Home / 5,335.17-8,001.78-1,438.66

Finding the Fourth Proportional to 5,335.17, 8,001.78 and 1,438.66

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Solution

The fourth proportional to 5,335.17, 8,001.78 and 1,438.66 is: 2,157.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,335.17 : 8,001.78 = 1,438.66 : x
  2. Step 2: Convert to fraction form
    5,335.17/8,001.78 = 1,438.66/x
  3. Step 3: Cross multiply
    5,335.17x = 8,001.78 × 1,438.66
  4. Step 4: Simplify right side
    5,335.17x = 11,511,840.81
  5. Step 5: Solve for x
    x = 11,511,840.81/5,335.17
  6. Step 6: Final answer
    x = 2,157.73

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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.