Home / 2,470.20-3,699.90-2,196.60

Finding the Fourth Proportional to 2,470.20, 3,699.90 and 2,196.60

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Solution

The fourth proportional to 2,470.20, 3,699.90 and 2,196.60 is: 3,290.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,470.20 : 3,699.90 = 2,196.60 : x
  2. Step 2: Convert to fraction form
    2,470.20/3,699.90 = 2,196.60/x
  3. Step 3: Cross multiply
    2,470.20x = 3,699.90 × 2,196.60
  4. Step 4: Simplify right side
    2,470.20x = 8,127,200.34
  5. Step 5: Solve for x
    x = 8,127,200.34/2,470.20
  6. Step 6: Final answer
    x = 3,290.10

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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.