Home / 1,569.44-2,356.86-1,161.20

Finding the Fourth Proportional to 1,569.44, 2,356.86 and 1,161.20

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Solution

The fourth proportional to 1,569.44, 2,356.86 and 1,161.20 is: 1,743.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,569.44 : 2,356.86 = 1,161.20 : x
  2. Step 2: Convert to fraction form
    1,569.44/2,356.86 = 1,161.20/x
  3. Step 3: Cross multiply
    1,569.44x = 2,356.86 × 1,161.20
  4. Step 4: Simplify right side
    1,569.44x = 2,736,785.83
  5. Step 5: Solve for x
    x = 2,736,785.83/1,569.44
  6. Step 6: Final answer
    x = 1,743.80

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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.