Home / 1,612.38-2,225.08-949.64

Finding the Fourth Proportional to 1,612.38, 2,225.08 and 949.64

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Solution

The fourth proportional to 1,612.38, 2,225.08 and 949.64 is: 1,310.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,612.38 : 2,225.08 = 949.64 : x
  2. Step 2: Convert to fraction form
    1,612.38/2,225.08 = 949.64/x
  3. Step 3: Cross multiply
    1,612.38x = 2,225.08 × 949.64
  4. Step 4: Simplify right side
    1,612.38x = 2,113,017.03
  5. Step 5: Solve for x
    x = 2,113,017.03/1,612.38
  6. Step 6: Final answer
    x = 1,310.50

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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.