Home / 3,728.34-5,587.47-1,418.58

Finding the Fourth Proportional to 3,728.34, 5,587.47 and 1,418.58

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Solution

The fourth proportional to 3,728.34, 5,587.47 and 1,418.58 is: 2,125.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,728.34 : 5,587.47 = 1,418.58 : x
  2. Step 2: Convert to fraction form
    3,728.34/5,587.47 = 1,418.58/x
  3. Step 3: Cross multiply
    3,728.34x = 5,587.47 × 1,418.58
  4. Step 4: Simplify right side
    3,728.34x = 7,926,273.19
  5. Step 5: Solve for x
    x = 7,926,273.19/3,728.34
  6. Step 6: Final answer
    x = 2,125.95

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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.