Home / 2,023.65-2,792.70-1,139.49

Finding the Fourth Proportional to 2,023.65, 2,792.70 and 1,139.49

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Solution

The fourth proportional to 2,023.65, 2,792.70 and 1,139.49 is: 1,572.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,023.65 : 2,792.70 = 1,139.49 : x
  2. Step 2: Convert to fraction form
    2,023.65/2,792.70 = 1,139.49/x
  3. Step 3: Cross multiply
    2,023.65x = 2,792.70 × 1,139.49
  4. Step 4: Simplify right side
    2,023.65x = 3,182,249.45
  5. Step 5: Solve for x
    x = 3,182,249.45/2,023.65
  6. Step 6: Final answer
    x = 1,572.53

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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.