Home / 1,323.28-1,981.78-1,048.49

Finding the Fourth Proportional to 1,323.28, 1,981.78 and 1,048.49

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Solution

The fourth proportional to 1,323.28, 1,981.78 and 1,048.49 is: 1,570.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,323.28 : 1,981.78 = 1,048.49 : x
  2. Step 2: Convert to fraction form
    1,323.28/1,981.78 = 1,048.49/x
  3. Step 3: Cross multiply
    1,323.28x = 1,981.78 × 1,048.49
  4. Step 4: Simplify right side
    1,323.28x = 2,077,863.98
  5. Step 5: Solve for x
    x = 2,077,863.98/1,323.28
  6. Step 6: Final answer
    x = 1,570.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.