Home / 4,221.90-5,827.68-2,899.98

Finding the Fourth Proportional to 4,221.90, 5,827.68 and 2,899.98

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Solution

The fourth proportional to 4,221.90, 5,827.68 and 2,899.98 is: 4,002.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,221.90 : 5,827.68 = 2,899.98 : x
  2. Step 2: Convert to fraction form
    4,221.90/5,827.68 = 2,899.98/x
  3. Step 3: Cross multiply
    4,221.90x = 5,827.68 × 2,899.98
  4. Step 4: Simplify right side
    4,221.90x = 16,900,155.45
  5. Step 5: Solve for x
    x = 16,900,155.45/4,221.90
  6. Step 6: Final answer
    x = 4,002.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.