Home / 2,899.60-4,001.24-1,720.72

Finding the Fourth Proportional to 2,899.60, 4,001.24 and 1,720.72

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Solution

The fourth proportional to 2,899.60, 4,001.24 and 1,720.72 is: 2,374.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,899.60 : 4,001.24 = 1,720.72 : x
  2. Step 2: Convert to fraction form
    2,899.60/4,001.24 = 1,720.72/x
  3. Step 3: Cross multiply
    2,899.60x = 4,001.24 × 1,720.72
  4. Step 4: Simplify right side
    2,899.60x = 6,885,013.69
  5. Step 5: Solve for x
    x = 6,885,013.69/2,899.60
  6. Step 6: Final answer
    x = 2,374.47

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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.