Home / 1,851.38-2,554.90-1,152.75

Finding the Fourth Proportional to 1,851.38, 2,554.90 and 1,152.75

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Solution

The fourth proportional to 1,851.38, 2,554.90 and 1,152.75 is: 1,590.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,851.38 : 2,554.90 = 1,152.75 : x
  2. Step 2: Convert to fraction form
    1,851.38/2,554.90 = 1,152.75/x
  3. Step 3: Cross multiply
    1,851.38x = 2,554.90 × 1,152.75
  4. Step 4: Simplify right side
    1,851.38x = 2,945,158.09
  5. Step 5: Solve for x
    x = 2,945,158.09/1,851.38
  6. Step 6: Final answer
    x = 1,590.80

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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.