Home / 2,077.65-2,867.73-1,405.16

Finding the Fourth Proportional to 2,077.65, 2,867.73 and 1,405.16

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Solution

The fourth proportional to 2,077.65, 2,867.73 and 1,405.16 is: 1,939.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,077.65 : 2,867.73 = 1,405.16 : x
  2. Step 2: Convert to fraction form
    2,077.65/2,867.73 = 1,405.16/x
  3. Step 3: Cross multiply
    2,077.65x = 2,867.73 × 1,405.16
  4. Step 4: Simplify right side
    2,077.65x = 4,029,605.15
  5. Step 5: Solve for x
    x = 4,029,605.15/2,077.65
  6. Step 6: Final answer
    x = 1,939.50

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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.