Home / 2,823.42-3,892.68-1,937.64

Finding the Fourth Proportional to 2,823.42, 3,892.68 and 1,937.64

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Solution

The fourth proportional to 2,823.42, 3,892.68 and 1,937.64 is: 2,671.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,823.42 : 3,892.68 = 1,937.64 : x
  2. Step 2: Convert to fraction form
    2,823.42/3,892.68 = 1,937.64/x
  3. Step 3: Cross multiply
    2,823.42x = 3,892.68 × 1,937.64
  4. Step 4: Simplify right side
    2,823.42x = 7,542,612.48
  5. Step 5: Solve for x
    x = 7,542,612.48/2,823.42
  6. Step 6: Final answer
    x = 2,671.45

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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.