Home / 3,652.15-5,478.99-1,187.02

Finding the Fourth Proportional to 3,652.15, 5,478.99 and 1,187.02

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Solution

The fourth proportional to 3,652.15, 5,478.99 and 1,187.02 is: 1,780.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,652.15 : 5,478.99 = 1,187.02 : x
  2. Step 2: Convert to fraction form
    3,652.15/5,478.99 = 1,187.02/x
  3. Step 3: Cross multiply
    3,652.15x = 5,478.99 × 1,187.02
  4. Step 4: Simplify right side
    3,652.15x = 6,503,670.71
  5. Step 5: Solve for x
    x = 6,503,670.71/3,652.15
  6. Step 6: Final answer
    x = 1,780.78

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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.