Home / 1,812.80-2,499.36-1,532.48

Finding the Fourth Proportional to 1,812.80, 2,499.36 and 1,532.48

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Solution

The fourth proportional to 1,812.80, 2,499.36 and 1,532.48 is: 2,112.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,812.80 : 2,499.36 = 1,532.48 : x
  2. Step 2: Convert to fraction form
    1,812.80/2,499.36 = 1,532.48/x
  3. Step 3: Cross multiply
    1,812.80x = 2,499.36 × 1,532.48
  4. Step 4: Simplify right side
    1,812.80x = 3,830,219.21
  5. Step 5: Solve for x
    x = 3,830,219.21/1,812.80
  6. Step 6: Final answer
    x = 2,112.87

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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.