Home / 2,421.87-3,342.01-1,359.51

Finding the Fourth Proportional to 2,421.87, 3,342.01 and 1,359.51

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Solution

The fourth proportional to 2,421.87, 3,342.01 and 1,359.51 is: 1,876.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,421.87 : 3,342.01 = 1,359.51 : x
  2. Step 2: Convert to fraction form
    2,421.87/3,342.01 = 1,359.51/x
  3. Step 3: Cross multiply
    2,421.87x = 3,342.01 × 1,359.51
  4. Step 4: Simplify right side
    2,421.87x = 4,543,496.02
  5. Step 5: Solve for x
    x = 4,543,496.02/2,421.87
  6. Step 6: Final answer
    x = 1,876.03

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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.