Home / 1,612.74-2,225.63-949.61

Finding the Fourth Proportional to 1,612.74, 2,225.63 and 949.61

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Solution

The fourth proportional to 1,612.74, 2,225.63 and 949.61 is: 1,310.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,612.74 : 2,225.63 = 949.61 : x
  2. Step 2: Convert to fraction form
    1,612.74/2,225.63 = 949.61/x
  3. Step 3: Cross multiply
    1,612.74x = 2,225.63 × 949.61
  4. Step 4: Simplify right side
    1,612.74x = 2,113,464.63
  5. Step 5: Solve for x
    x = 2,113,464.63/1,612.74
  6. Step 6: Final answer
    x = 1,310.48

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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.