Home / 1,292.64-1,785.32-1,001.46

Finding the Fourth Proportional to 1,292.64, 1,785.32 and 1,001.46

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Solution

The fourth proportional to 1,292.64, 1,785.32 and 1,001.46 is: 1,383.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292.64 : 1,785.32 = 1,001.46 : x
  2. Step 2: Convert to fraction form
    1,292.64/1,785.32 = 1,001.46/x
  3. Step 3: Cross multiply
    1,292.64x = 1,785.32 × 1,001.46
  4. Step 4: Simplify right side
    1,292.64x = 1,787,926.57
  5. Step 5: Solve for x
    x = 1,787,926.57/1,292.64
  6. Step 6: Final answer
    x = 1,383.16

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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.