Home / 2,421.74-3,342.05-1,359.75

Finding the Fourth Proportional to 2,421.74, 3,342.05 and 1,359.75

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Solution

The fourth proportional to 2,421.74, 3,342.05 and 1,359.75 is: 1,876.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,421.74 : 3,342.05 = 1,359.75 : x
  2. Step 2: Convert to fraction form
    2,421.74/3,342.05 = 1,359.75/x
  3. Step 3: Cross multiply
    2,421.74x = 3,342.05 × 1,359.75
  4. Step 4: Simplify right side
    2,421.74x = 4,544,345.69
  5. Step 5: Solve for x
    x = 4,544,345.69/2,421.74
  6. Step 6: Final answer
    x = 1,876.48

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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.