Home / 2,320.82-3,480.14-1,347.20

Finding the Fourth Proportional to 2,320.82, 3,480.14 and 1,347.20

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Solution

The fourth proportional to 2,320.82, 3,480.14 and 1,347.20 is: 2,020.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,320.82 : 3,480.14 = 1,347.20 : x
  2. Step 2: Convert to fraction form
    2,320.82/3,480.14 = 1,347.20/x
  3. Step 3: Cross multiply
    2,320.82x = 3,480.14 × 1,347.20
  4. Step 4: Simplify right side
    2,320.82x = 4,688,444.61
  5. Step 5: Solve for x
    x = 4,688,444.61/2,320.82
  6. Step 6: Final answer
    x = 2,020.17

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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.