Home / 2,810.80-4,210.55-1,400.97

Finding the Fourth Proportional to 2,810.80, 4,210.55 and 1,400.97

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Solution

The fourth proportional to 2,810.80, 4,210.55 and 1,400.97 is: 2,098.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,810.80 : 4,210.55 = 1,400.97 : x
  2. Step 2: Convert to fraction form
    2,810.80/4,210.55 = 1,400.97/x
  3. Step 3: Cross multiply
    2,810.80x = 4,210.55 × 1,400.97
  4. Step 4: Simplify right side
    2,810.80x = 5,898,854.23
  5. Step 5: Solve for x
    x = 5,898,854.23/2,810.80
  6. Step 6: Final answer
    x = 2,098.64

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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.