Home / 1,587.96-2,192.97-1,309.14

Finding the Fourth Proportional to 1,587.96, 2,192.97 and 1,309.14

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Solution

The fourth proportional to 1,587.96, 2,192.97 and 1,309.14 is: 1,807.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,587.96 : 2,192.97 = 1,309.14 : x
  2. Step 2: Convert to fraction form
    1,587.96/2,192.97 = 1,309.14/x
  3. Step 3: Cross multiply
    1,587.96x = 2,192.97 × 1,309.14
  4. Step 4: Simplify right side
    1,587.96x = 2,870,904.75
  5. Step 5: Solve for x
    x = 2,870,904.75/1,587.96
  6. Step 6: Final answer
    x = 1,807.92

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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.