Home / 2,078.29-2,867.20-1,457.65

Finding the Fourth Proportional to 2,078.29, 2,867.20 and 1,457.65

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Solution

The fourth proportional to 2,078.29, 2,867.20 and 1,457.65 is: 2,010.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,078.29 : 2,867.20 = 1,457.65 : x
  2. Step 2: Convert to fraction form
    2,078.29/2,867.20 = 1,457.65/x
  3. Step 3: Cross multiply
    2,078.29x = 2,867.20 × 1,457.65
  4. Step 4: Simplify right side
    2,078.29x = 4,179,374.08
  5. Step 5: Solve for x
    x = 4,179,374.08/2,078.29
  6. Step 6: Final answer
    x = 2,010.97

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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.