Home / 2,647.11-3,652.74-1,527.78

Finding the Fourth Proportional to 2,647.11, 3,652.74 and 1,527.78

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Solution

The fourth proportional to 2,647.11, 3,652.74 and 1,527.78 is: 2,108.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,647.11 : 3,652.74 = 1,527.78 : x
  2. Step 2: Convert to fraction form
    2,647.11/3,652.74 = 1,527.78/x
  3. Step 3: Cross multiply
    2,647.11x = 3,652.74 × 1,527.78
  4. Step 4: Simplify right side
    2,647.11x = 5,580,583.12
  5. Step 5: Solve for x
    x = 5,580,583.12/2,647.11
  6. Step 6: Final answer
    x = 2,108.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.