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Finding the Fourth Proportional to 5,326.36, 7,984.10 and 1,860.76

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Solution

The fourth proportional to 5,326.36, 7,984.10 and 1,860.76 is: 2,789.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,326.36 : 7,984.10 = 1,860.76 : x
  2. Step 2: Convert to fraction form
    5,326.36/7,984.10 = 1,860.76/x
  3. Step 3: Cross multiply
    5,326.36x = 7,984.10 × 1,860.76
  4. Step 4: Simplify right side
    5,326.36x = 14,856,493.92
  5. Step 5: Solve for x
    x = 14,856,493.92/5,326.36
  6. Step 6: Final answer
    x = 2,789.24

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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.