Home / 3,587.79-5,382.35-1,122.05

Finding the Fourth Proportional to 3,587.79, 5,382.35 and 1,122.05

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Solution

The fourth proportional to 3,587.79, 5,382.35 and 1,122.05 is: 1,683.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,587.79 : 5,382.35 = 1,122.05 : x
  2. Step 2: Convert to fraction form
    3,587.79/5,382.35 = 1,122.05/x
  3. Step 3: Cross multiply
    3,587.79x = 5,382.35 × 1,122.05
  4. Step 4: Simplify right side
    3,587.79x = 6,039,277.87
  5. Step 5: Solve for x
    x = 6,039,277.87/3,587.79
  6. Step 6: Final answer
    x = 1,683.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.