Home / 2,630.40-3,945.60-2,470.02

Finding the Fourth Proportional to 2,630.40, 3,945.60 and 2,470.02

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Solution

The fourth proportional to 2,630.40, 3,945.60 and 2,470.02 is: 3,705.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,630.40 : 3,945.60 = 2,470.02 : x
  2. Step 2: Convert to fraction form
    2,630.40/3,945.60 = 2,470.02/x
  3. Step 3: Cross multiply
    2,630.40x = 3,945.60 × 2,470.02
  4. Step 4: Simplify right side
    2,630.40x = 9,745,710.91
  5. Step 5: Solve for x
    x = 9,745,710.91/2,630.40
  6. Step 6: Final answer
    x = 3,705.03

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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.