Home / 5,407.71-8,113.52-2,123.04

Finding the Fourth Proportional to 5,407.71, 8,113.52 and 2,123.04

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Solution

The fourth proportional to 5,407.71, 8,113.52 and 2,123.04 is: 3,185.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,407.71 : 8,113.52 = 2,123.04 : x
  2. Step 2: Convert to fraction form
    5,407.71/8,113.52 = 2,123.04/x
  3. Step 3: Cross multiply
    5,407.71x = 8,113.52 × 2,123.04
  4. Step 4: Simplify right side
    5,407.71x = 17,225,327.50
  5. Step 5: Solve for x
    x = 17,225,327.50/5,407.71
  6. Step 6: Final answer
    x = 3,185.33

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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.