Home / 2,673.65-3,689.66-1,555.25

Finding the Fourth Proportional to 2,673.65, 3,689.66 and 1,555.25

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Solution

The fourth proportional to 2,673.65, 3,689.66 and 1,555.25 is: 2,146.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,673.65 : 3,689.66 = 1,555.25 : x
  2. Step 2: Convert to fraction form
    2,673.65/3,689.66 = 1,555.25/x
  3. Step 3: Cross multiply
    2,673.65x = 3,689.66 × 1,555.25
  4. Step 4: Simplify right side
    2,673.65x = 5,738,329.15
  5. Step 5: Solve for x
    x = 5,738,329.15/2,673.65
  6. Step 6: Final answer
    x = 2,146.25

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1.5x scale

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.