Home / 3,587.16-5,381.46-1,638.84

Finding the Fourth Proportional to 3,587.16, 5,381.46 and 1,638.84

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Solution

The fourth proportional to 3,587.16, 5,381.46 and 1,638.84 is: 2,458.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,587.16 : 5,381.46 = 1,638.84 : x
  2. Step 2: Convert to fraction form
    3,587.16/5,381.46 = 1,638.84/x
  3. Step 3: Cross multiply
    3,587.16x = 5,381.46 × 1,638.84
  4. Step 4: Simplify right side
    3,587.16x = 8,819,351.91
  5. Step 5: Solve for x
    x = 8,819,351.91/3,587.16
  6. Step 6: Final answer
    x = 2,458.59

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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.