Home / 2,827.10-3,901.80-1,708.20

Finding the Fourth Proportional to 2,827.10, 3,901.80 and 1,708.20

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Solution

The fourth proportional to 2,827.10, 3,901.80 and 1,708.20 is: 2,357.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,827.10 : 3,901.80 = 1,708.20 : x
  2. Step 2: Convert to fraction form
    2,827.10/3,901.80 = 1,708.20/x
  3. Step 3: Cross multiply
    2,827.10x = 3,901.80 × 1,708.20
  4. Step 4: Simplify right side
    2,827.10x = 6,665,038.36
  5. Step 5: Solve for x
    x = 6,665,038.36/2,827.10
  6. Step 6: Final answer
    x = 2,357.56

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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.