Home / 1,087.08-1,617.60-1,083.48

Finding the Fourth Proportional to 1,087.08, 1,617.60 and 1,083.48

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Solution

The fourth proportional to 1,087.08, 1,617.60 and 1,083.48 is: 1,612.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087.08 : 1,617.60 = 1,083.48 : x
  2. Step 2: Convert to fraction form
    1,087.08/1,617.60 = 1,083.48/x
  3. Step 3: Cross multiply
    1,087.08x = 1,617.60 × 1,083.48
  4. Step 4: Simplify right side
    1,087.08x = 1,752,637.25
  5. Step 5: Solve for x
    x = 1,752,637.25/1,087.08
  6. Step 6: Final answer
    x = 1,612.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.