Home / 2,423.92-3,343.80-1,538.32

Finding the Fourth Proportional to 2,423.92, 3,343.80 and 1,538.32

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Solution

The fourth proportional to 2,423.92, 3,343.80 and 1,538.32 is: 2,122.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,423.92 : 3,343.80 = 1,538.32 : x
  2. Step 2: Convert to fraction form
    2,423.92/3,343.80 = 1,538.32/x
  3. Step 3: Cross multiply
    2,423.92x = 3,343.80 × 1,538.32
  4. Step 4: Simplify right side
    2,423.92x = 5,143,834.42
  5. Step 5: Solve for x
    x = 5,143,834.42/2,423.92
  6. Step 6: Final answer
    x = 2,122.11

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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.