Home / 1,651.78-2,277.07-1,258.12

Finding the Fourth Proportional to 1,651.78, 2,277.07 and 1,258.12

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Solution

The fourth proportional to 1,651.78, 2,277.07 and 1,258.12 is: 1,734.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,651.78 : 2,277.07 = 1,258.12 : x
  2. Step 2: Convert to fraction form
    1,651.78/2,277.07 = 1,258.12/x
  3. Step 3: Cross multiply
    1,651.78x = 2,277.07 × 1,258.12
  4. Step 4: Simplify right side
    1,651.78x = 2,864,827.31
  5. Step 5: Solve for x
    x = 2,864,827.31/1,651.78
  6. Step 6: Final answer
    x = 1,734.39

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Half scale
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Double scale
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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.