Home / 2,887.90-4,331.85-2,196.70

Finding the Fourth Proportional to 2,887.90, 4,331.85 and 2,196.70

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Solution

The fourth proportional to 2,887.90, 4,331.85 and 2,196.70 is: 3,295.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,887.90 : 4,331.85 = 2,196.70 : x
  2. Step 2: Convert to fraction form
    2,887.90/4,331.85 = 2,196.70/x
  3. Step 3: Cross multiply
    2,887.90x = 4,331.85 × 2,196.70
  4. Step 4: Simplify right side
    2,887.90x = 9,515,774.90
  5. Step 5: Solve for x
    x = 9,515,774.90/2,887.90
  6. Step 6: Final answer
    x = 3,295.05

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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.