Home / 3,242.70-4,475.58-2,121.71

Finding the Fourth Proportional to 3,242.70, 4,475.58 and 2,121.71

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Solution

The fourth proportional to 3,242.70, 4,475.58 and 2,121.71 is: 2,928.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,242.70 : 4,475.58 = 2,121.71 : x
  2. Step 2: Convert to fraction form
    3,242.70/4,475.58 = 2,121.71/x
  3. Step 3: Cross multiply
    3,242.70x = 4,475.58 × 2,121.71
  4. Step 4: Simplify right side
    3,242.70x = 9,495,894.03
  5. Step 5: Solve for x
    x = 9,495,894.03/3,242.70
  6. Step 6: Final answer
    x = 2,928.39

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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.