Home / 2,420.13-3,339.96-1,358.02

Finding the Fourth Proportional to 2,420.13, 3,339.96 and 1,358.02

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Solution

The fourth proportional to 2,420.13, 3,339.96 and 1,358.02 is: 1,874.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,420.13 : 3,339.96 = 1,358.02 : x
  2. Step 2: Convert to fraction form
    2,420.13/3,339.96 = 1,358.02/x
  3. Step 3: Cross multiply
    2,420.13x = 3,339.96 × 1,358.02
  4. Step 4: Simplify right side
    2,420.13x = 4,535,732.48
  5. Step 5: Solve for x
    x = 4,535,732.48/2,420.13
  6. Step 6: Final answer
    x = 1,874.17

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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.