Home / 2,303.90-3,456.20-842.70

Finding the Fourth Proportional to 2,303.90, 3,456.20 and 842.70

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Solution

The fourth proportional to 2,303.90, 3,456.20 and 842.70 is: 1,264.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,303.90 : 3,456.20 = 842.70 : x
  2. Step 2: Convert to fraction form
    2,303.90/3,456.20 = 842.70/x
  3. Step 3: Cross multiply
    2,303.90x = 3,456.20 × 842.70
  4. Step 4: Simplify right side
    2,303.90x = 2,912,539.74
  5. Step 5: Solve for x
    x = 2,912,539.74/2,303.90
  6. Step 6: Final answer
    x = 1,264.18

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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.