Home / 2,495.85-3,743.45-647.09

Finding the Fourth Proportional to 2,495.85, 3,743.45 and 647.09

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Solution

The fourth proportional to 2,495.85, 3,743.45 and 647.09 is: 970.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,495.85 : 3,743.45 = 647.09 : x
  2. Step 2: Convert to fraction form
    2,495.85/3,743.45 = 647.09/x
  3. Step 3: Cross multiply
    2,495.85x = 3,743.45 × 647.09
  4. Step 4: Simplify right side
    2,495.85x = 2,422,343.57
  5. Step 5: Solve for x
    x = 2,422,343.57/2,495.85
  6. Step 6: Final answer
    x = 970.55

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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.