Home / 5,431.74-8,113.02-4,910.88

Finding the Fourth Proportional to 5,431.74, 8,113.02 and 4,910.88

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Solution

The fourth proportional to 5,431.74, 8,113.02 and 4,910.88 is: 7,335.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,431.74 : 8,113.02 = 4,910.88 : x
  2. Step 2: Convert to fraction form
    5,431.74/8,113.02 = 4,910.88/x
  3. Step 3: Cross multiply
    5,431.74x = 8,113.02 × 4,910.88
  4. Step 4: Simplify right side
    5,431.74x = 39,842,067.66
  5. Step 5: Solve for x
    x = 39,842,067.66/5,431.74
  6. Step 6: Final answer
    x = 7,335.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.