Home / 1,784.38-2,463.56-1,122.20

Finding the Fourth Proportional to 1,784.38, 2,463.56 and 1,122.20

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Solution

The fourth proportional to 1,784.38, 2,463.56 and 1,122.20 is: 1,549.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,784.38 : 2,463.56 = 1,122.20 : x
  2. Step 2: Convert to fraction form
    1,784.38/2,463.56 = 1,122.20/x
  3. Step 3: Cross multiply
    1,784.38x = 2,463.56 × 1,122.20
  4. Step 4: Simplify right side
    1,784.38x = 2,764,622.72
  5. Step 5: Solve for x
    x = 2,764,622.72/1,784.38
  6. Step 6: Final answer
    x = 1,549.35

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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.