Home / 3,498.75-5,248.67-1,307.79

Finding the Fourth Proportional to 3,498.75, 5,248.67 and 1,307.79

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Solution

The fourth proportional to 3,498.75, 5,248.67 and 1,307.79 is: 1,961.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,498.75 : 5,248.67 = 1,307.79 : x
  2. Step 2: Convert to fraction form
    3,498.75/5,248.67 = 1,307.79/x
  3. Step 3: Cross multiply
    3,498.75x = 5,248.67 × 1,307.79
  4. Step 4: Simplify right side
    3,498.75x = 6,864,151.60
  5. Step 5: Solve for x
    x = 6,864,151.60/3,498.75
  6. Step 6: Final answer
    x = 1,961.89

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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.