Home / 3,353.30-5,030.51-1,405.65

Finding the Fourth Proportional to 3,353.30, 5,030.51 and 1,405.65

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Solution

The fourth proportional to 3,353.30, 5,030.51 and 1,405.65 is: 2,108.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,353.30 : 5,030.51 = 1,405.65 : x
  2. Step 2: Convert to fraction form
    3,353.30/5,030.51 = 1,405.65/x
  3. Step 3: Cross multiply
    3,353.30x = 5,030.51 × 1,405.65
  4. Step 4: Simplify right side
    3,353.30x = 7,071,136.38
  5. Step 5: Solve for x
    x = 7,071,136.38/3,353.30
  6. Step 6: Final answer
    x = 2,108.71

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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.