Home / 1,887.21-2,604.32-1,047.90

Finding the Fourth Proportional to 1,887.21, 2,604.32 and 1,047.90

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Solution

The fourth proportional to 1,887.21, 2,604.32 and 1,047.90 is: 1,446.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,887.21 : 2,604.32 = 1,047.90 : x
  2. Step 2: Convert to fraction form
    1,887.21/2,604.32 = 1,047.90/x
  3. Step 3: Cross multiply
    1,887.21x = 2,604.32 × 1,047.90
  4. Step 4: Simplify right side
    1,887.21x = 2,729,061.69
  5. Step 5: Solve for x
    x = 2,729,061.69/1,887.21
  6. Step 6: Final answer
    x = 1,446.08

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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.