Home / 5,407.07-8,110.20-1,511.78

Finding the Fourth Proportional to 5,407.07, 8,110.20 and 1,511.78

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Solution

The fourth proportional to 5,407.07, 8,110.20 and 1,511.78 is: 2,267.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,407.07 : 8,110.20 = 1,511.78 : x
  2. Step 2: Convert to fraction form
    5,407.07/8,110.20 = 1,511.78/x
  3. Step 3: Cross multiply
    5,407.07x = 8,110.20 × 1,511.78
  4. Step 4: Simplify right side
    5,407.07x = 12,260,838.16
  5. Step 5: Solve for x
    x = 12,260,838.16/5,407.07
  6. Step 6: Final answer
    x = 2,267.56

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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.