Home / 3,178.10-4,381.47-2,232.24

Finding the Fourth Proportional to 3,178.10, 4,381.47 and 2,232.24

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Solution

The fourth proportional to 3,178.10, 4,381.47 and 2,232.24 is: 3,077.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,178.10 : 4,381.47 = 2,232.24 : x
  2. Step 2: Convert to fraction form
    3,178.10/4,381.47 = 2,232.24/x
  3. Step 3: Cross multiply
    3,178.10x = 4,381.47 × 2,232.24
  4. Step 4: Simplify right side
    3,178.10x = 9,780,492.59
  5. Step 5: Solve for x
    x = 9,780,492.59/3,178.10
  6. Step 6: Final answer
    x = 3,077.47

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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.