Home / 2,518.23-3,478.65-2,395.20

Finding the Fourth Proportional to 2,518.23, 3,478.65 and 2,395.20

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Solution

The fourth proportional to 2,518.23, 3,478.65 and 2,395.20 is: 3,308.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,518.23 : 3,478.65 = 2,395.20 : x
  2. Step 2: Convert to fraction form
    2,518.23/3,478.65 = 2,395.20/x
  3. Step 3: Cross multiply
    2,518.23x = 3,478.65 × 2,395.20
  4. Step 4: Simplify right side
    2,518.23x = 8,332,062.48
  5. Step 5: Solve for x
    x = 8,332,062.48/2,518.23
  6. Step 6: Final answer
    x = 3,308.70

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1.5x scale

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.