Home / 3,511.15-5,264.08-2,124.20

Finding the Fourth Proportional to 3,511.15, 5,264.08 and 2,124.20

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Solution

The fourth proportional to 3,511.15, 5,264.08 and 2,124.20 is: 3,184.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,511.15 : 5,264.08 = 2,124.20 : x
  2. Step 2: Convert to fraction form
    3,511.15/5,264.08 = 2,124.20/x
  3. Step 3: Cross multiply
    3,511.15x = 5,264.08 × 2,124.20
  4. Step 4: Simplify right side
    3,511.15x = 11,181,958.74
  5. Step 5: Solve for x
    x = 11,181,958.74/3,511.15
  6. Step 6: Final answer
    x = 3,184.70

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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.