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Finding the Fourth Proportional to 1,887.56, 2,828.28 and 1,154.92

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Solution

The fourth proportional to 1,887.56, 2,828.28 and 1,154.92 is: 1,730.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,887.56 : 2,828.28 = 1,154.92 : x
  2. Step 2: Convert to fraction form
    1,887.56/2,828.28 = 1,154.92/x
  3. Step 3: Cross multiply
    1,887.56x = 2,828.28 × 1,154.92
  4. Step 4: Simplify right side
    1,887.56x = 3,266,437.14
  5. Step 5: Solve for x
    x = 3,266,437.14/1,887.56
  6. Step 6: Final answer
    x = 1,730.51

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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.