Home / 2,465.10-3,693.60-2,116.80

Finding the Fourth Proportional to 2,465.10, 3,693.60 and 2,116.80

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Solution

The fourth proportional to 2,465.10, 3,693.60 and 2,116.80 is: 3,171.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,465.10 : 3,693.60 = 2,116.80 : x
  2. Step 2: Convert to fraction form
    2,465.10/3,693.60 = 2,116.80/x
  3. Step 3: Cross multiply
    2,465.10x = 3,693.60 × 2,116.80
  4. Step 4: Simplify right side
    2,465.10x = 7,818,612.48
  5. Step 5: Solve for x
    x = 7,818,612.48/2,465.10
  6. Step 6: Final answer
    x = 3,171.72

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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.