Home / 1,870.38-2,805.66-1,255.32

Finding the Fourth Proportional to 1,870.38, 2,805.66 and 1,255.32

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Solution

The fourth proportional to 1,870.38, 2,805.66 and 1,255.32 is: 1,883.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,870.38 : 2,805.66 = 1,255.32 : x
  2. Step 2: Convert to fraction form
    1,870.38/2,805.66 = 1,255.32/x
  3. Step 3: Cross multiply
    1,870.38x = 2,805.66 × 1,255.32
  4. Step 4: Simplify right side
    1,870.38x = 3,522,001.11
  5. Step 5: Solve for x
    x = 3,522,001.11/1,870.38
  6. Step 6: Final answer
    x = 1,883.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.