Home / 5,407.18-8,110.80-1,511.58

Finding the Fourth Proportional to 5,407.18, 8,110.80 and 1,511.58

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Solution

The fourth proportional to 5,407.18, 8,110.80 and 1,511.58 is: 2,267.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,407.18 : 8,110.80 = 1,511.58 : x
  2. Step 2: Convert to fraction form
    5,407.18/8,110.80 = 1,511.58/x
  3. Step 3: Cross multiply
    5,407.18x = 8,110.80 × 1,511.58
  4. Step 4: Simplify right side
    5,407.18x = 12,260,123.06
  5. Step 5: Solve for x
    x = 12,260,123.06/5,407.18
  6. Step 6: Final answer
    x = 2,267.38

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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.