Home / 1,581.41-2,180.57-1,360.28

Finding the Fourth Proportional to 1,581.41, 2,180.57 and 1,360.28

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Solution

The fourth proportional to 1,581.41, 2,180.57 and 1,360.28 is: 1,875.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,581.41 : 2,180.57 = 1,360.28 : x
  2. Step 2: Convert to fraction form
    1,581.41/2,180.57 = 1,360.28/x
  3. Step 3: Cross multiply
    1,581.41x = 2,180.57 × 1,360.28
  4. Step 4: Simplify right side
    1,581.41x = 2,966,168.06
  5. Step 5: Solve for x
    x = 2,966,168.06/1,581.41
  6. Step 6: Final answer
    x = 1,875.65

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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.