Home / 4,408.77-6,612.13-1,288.12

Finding the Fourth Proportional to 4,408.77, 6,612.13 and 1,288.12

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Solution

The fourth proportional to 4,408.77, 6,612.13 and 1,288.12 is: 1,931.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,408.77 : 6,612.13 = 1,288.12 : x
  2. Step 2: Convert to fraction form
    4,408.77/6,612.13 = 1,288.12/x
  3. Step 3: Cross multiply
    4,408.77x = 6,612.13 × 1,288.12
  4. Step 4: Simplify right side
    4,408.77x = 8,517,216.90
  5. Step 5: Solve for x
    x = 8,517,216.90/4,408.77
  6. Step 6: Final answer
    x = 1,931.88

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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.