Home / 1,144.17-1,579.05-647.01

Finding the Fourth Proportional to 1,144.17, 1,579.05 and 647.01

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Solution

The fourth proportional to 1,144.17, 1,579.05 and 647.01 is: 892.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,144.17 : 1,579.05 = 647.01 : x
  2. Step 2: Convert to fraction form
    1,144.17/1,579.05 = 647.01/x
  3. Step 3: Cross multiply
    1,144.17x = 1,579.05 × 647.01
  4. Step 4: Simplify right side
    1,144.17x = 1,021,661.14
  5. Step 5: Solve for x
    x = 1,021,661.14/1,144.17
  6. Step 6: Final answer
    x = 892.93

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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.