Home / 2,772.29-4,154.96-1,386.02

Finding the Fourth Proportional to 2,772.29, 4,154.96 and 1,386.02

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Solution

The fourth proportional to 2,772.29, 4,154.96 and 1,386.02 is: 2,077.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,772.29 : 4,154.96 = 1,386.02 : x
  2. Step 2: Convert to fraction form
    2,772.29/4,154.96 = 1,386.02/x
  3. Step 3: Cross multiply
    2,772.29x = 4,154.96 × 1,386.02
  4. Step 4: Simplify right side
    2,772.29x = 5,758,857.66
  5. Step 5: Solve for x
    x = 5,758,857.66/2,772.29
  6. Step 6: Final answer
    x = 2,077.29

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1.5x scale

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.