Home / 1,574.28-2,170.71-1,180.62

Finding the Fourth Proportional to 1,574.28, 2,170.71 and 1,180.62

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Solution

The fourth proportional to 1,574.28, 2,170.71 and 1,180.62 is: 1,627.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,574.28 : 2,170.71 = 1,180.62 : x
  2. Step 2: Convert to fraction form
    1,574.28/2,170.71 = 1,180.62/x
  3. Step 3: Cross multiply
    1,574.28x = 2,170.71 × 1,180.62
  4. Step 4: Simplify right side
    1,574.28x = 2,562,783.64
  5. Step 5: Solve for x
    x = 2,562,783.64/1,574.28
  6. Step 6: Final answer
    x = 1,627.91

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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.