Home / 1,887.28-2,832.29-1,425.63

Finding the Fourth Proportional to 1,887.28, 2,832.29 and 1,425.63

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Solution

The fourth proportional to 1,887.28, 2,832.29 and 1,425.63 is: 2,139.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,887.28 : 2,832.29 = 1,425.63 : x
  2. Step 2: Convert to fraction form
    1,887.28/2,832.29 = 1,425.63/x
  3. Step 3: Cross multiply
    1,887.28x = 2,832.29 × 1,425.63
  4. Step 4: Simplify right side
    1,887.28x = 4,037,797.59
  5. Step 5: Solve for x
    x = 4,037,797.59/1,887.28
  6. Step 6: Final answer
    x = 2,139.48

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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.