Home / 2,959.64-4,084.66-1,781.32

Finding the Fourth Proportional to 2,959.64, 4,084.66 and 1,781.32

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Solution

The fourth proportional to 2,959.64, 4,084.66 and 1,781.32 is: 2,458.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,959.64 : 4,084.66 = 1,781.32 : x
  2. Step 2: Convert to fraction form
    2,959.64/4,084.66 = 1,781.32/x
  3. Step 3: Cross multiply
    2,959.64x = 4,084.66 × 1,781.32
  4. Step 4: Simplify right side
    2,959.64x = 7,276,086.55
  5. Step 5: Solve for x
    x = 7,276,086.55/2,959.64
  6. Step 6: Final answer
    x = 2,458.44

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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.