Home / 3,627.54-5,441.15-1,287.45

Finding the Fourth Proportional to 3,627.54, 5,441.15 and 1,287.45

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Solution

The fourth proportional to 3,627.54, 5,441.15 and 1,287.45 is: 1,931.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,627.54 : 5,441.15 = 1,287.45 : x
  2. Step 2: Convert to fraction form
    3,627.54/5,441.15 = 1,287.45/x
  3. Step 3: Cross multiply
    3,627.54x = 5,441.15 × 1,287.45
  4. Step 4: Simplify right side
    3,627.54x = 7,005,211.79
  5. Step 5: Solve for x
    x = 7,005,211.79/3,627.54
  6. Step 6: Final answer
    x = 1,931.12

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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.