Home / 5,275.31-7,913.78-1,764.23

Finding the Fourth Proportional to 5,275.31, 7,913.78 and 1,764.23

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Solution

The fourth proportional to 5,275.31, 7,913.78 and 1,764.23 is: 2,646.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,275.31 : 7,913.78 = 1,764.23 : x
  2. Step 2: Convert to fraction form
    5,275.31/7,913.78 = 1,764.23/x
  3. Step 3: Cross multiply
    5,275.31x = 7,913.78 × 1,764.23
  4. Step 4: Simplify right side
    5,275.31x = 13,961,679.70
  5. Step 5: Solve for x
    x = 13,961,679.70/5,275.31
  6. Step 6: Final answer
    x = 2,646.61

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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.