Home / 1,899.38-2,621.37-1,153.46

Finding the Fourth Proportional to 1,899.38, 2,621.37 and 1,153.46

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Solution

The fourth proportional to 1,899.38, 2,621.37 and 1,153.46 is: 1,591.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,899.38 : 2,621.37 = 1,153.46 : x
  2. Step 2: Convert to fraction form
    1,899.38/2,621.37 = 1,153.46/x
  3. Step 3: Cross multiply
    1,899.38x = 2,621.37 × 1,153.46
  4. Step 4: Simplify right side
    1,899.38x = 3,023,645.44
  5. Step 5: Solve for x
    x = 3,023,645.44/1,899.38
  6. Step 6: Final answer
    x = 1,591.91

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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.