Home / 2,572.48-3,550-1,393.56

Finding the Fourth Proportional to 2,572.48, 3,550 and 1,393.56

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Solution

The fourth proportional to 2,572.48, 3,550 and 1,393.56 is: 1,923.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,572.48 : 3,550 = 1,393.56 : x
  2. Step 2: Convert to fraction form
    2,572.48/3,550 = 1,393.56/x
  3. Step 3: Cross multiply
    2,572.48x = 3,550 × 1,393.56
  4. Step 4: Simplify right side
    2,572.48x = 4,947,138
  5. Step 5: Solve for x
    x = 4,947,138/2,572.48
  6. Step 6: Final answer
    x = 1,923.10

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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.