Home / 1,587.72-2,192.52-1,194.08

Finding the Fourth Proportional to 1,587.72, 2,192.52 and 1,194.08

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Solution

The fourth proportional to 1,587.72, 2,192.52 and 1,194.08 is: 1,648.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,587.72 : 2,192.52 = 1,194.08 : x
  2. Step 2: Convert to fraction form
    1,587.72/2,192.52 = 1,194.08/x
  3. Step 3: Cross multiply
    1,587.72x = 2,192.52 × 1,194.08
  4. Step 4: Simplify right side
    1,587.72x = 2,618,044.28
  5. Step 5: Solve for x
    x = 2,618,044.28/1,587.72
  6. Step 6: Final answer
    x = 1,648.93

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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.