Home / 3,587.79-5,381.67-1,122.39

Finding the Fourth Proportional to 3,587.79, 5,381.67 and 1,122.39

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Solution

The fourth proportional to 3,587.79, 5,381.67 and 1,122.39 is: 1,683.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,587.79 : 5,381.67 = 1,122.39 : x
  2. Step 2: Convert to fraction form
    3,587.79/5,381.67 = 1,122.39/x
  3. Step 3: Cross multiply
    3,587.79x = 5,381.67 × 1,122.39
  4. Step 4: Simplify right side
    3,587.79x = 6,040,332.59
  5. Step 5: Solve for x
    x = 6,040,332.59/3,587.79
  6. Step 6: Final answer
    x = 1,683.58

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1.5x scale

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.