Home / 1,258.08-1,736.32-947.04

Finding the Fourth Proportional to 1,258.08, 1,736.32 and 947.04

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Solution

The fourth proportional to 1,258.08, 1,736.32 and 947.04 is: 1,307.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258.08 : 1,736.32 = 947.04 : x
  2. Step 2: Convert to fraction form
    1,258.08/1,736.32 = 947.04/x
  3. Step 3: Cross multiply
    1,258.08x = 1,736.32 × 947.04
  4. Step 4: Simplify right side
    1,258.08x = 1,644,364.49
  5. Step 5: Solve for x
    x = 1,644,364.49/1,258.08
  6. Step 6: Final answer
    x = 1,307.04

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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.