Home / 5,407.59-8,111.45-1,511.76

Finding the Fourth Proportional to 5,407.59, 8,111.45 and 1,511.76

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Solution

The fourth proportional to 5,407.59, 8,111.45 and 1,511.76 is: 2,267.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,407.59 : 8,111.45 = 1,511.76 : x
  2. Step 2: Convert to fraction form
    5,407.59/8,111.45 = 1,511.76/x
  3. Step 3: Cross multiply
    5,407.59x = 8,111.45 × 1,511.76
  4. Step 4: Simplify right side
    5,407.59x = 12,262,565.65
  5. Step 5: Solve for x
    x = 12,262,565.65/5,407.59
  6. Step 6: Final answer
    x = 2,267.66

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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.