Home / 2,405.81-3,320.01-1,343.66

Finding the Fourth Proportional to 2,405.81, 3,320.01 and 1,343.66

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Solution

The fourth proportional to 2,405.81, 3,320.01 and 1,343.66 is: 1,854.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,405.81 : 3,320.01 = 1,343.66 : x
  2. Step 2: Convert to fraction form
    2,405.81/3,320.01 = 1,343.66/x
  3. Step 3: Cross multiply
    2,405.81x = 3,320.01 × 1,343.66
  4. Step 4: Simplify right side
    2,405.81x = 4,460,964.64
  5. Step 5: Solve for x
    x = 4,460,964.64/2,405.81
  6. Step 6: Final answer
    x = 1,854.25

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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.