Home / 1,587.36-2,192.64-1,168.56

Finding the Fourth Proportional to 1,587.36, 2,192.64 and 1,168.56

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Solution

The fourth proportional to 1,587.36, 2,192.64 and 1,168.56 is: 1,614.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,587.36 : 2,192.64 = 1,168.56 : x
  2. Step 2: Convert to fraction form
    1,587.36/2,192.64 = 1,168.56/x
  3. Step 3: Cross multiply
    1,587.36x = 2,192.64 × 1,168.56
  4. Step 4: Simplify right side
    1,587.36x = 2,562,231.40
  5. Step 5: Solve for x
    x = 2,562,231.40/1,587.36
  6. Step 6: Final answer
    x = 1,614.15

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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.