Home / 3,545.20-5,317.40-1,353.88

Finding the Fourth Proportional to 3,545.20, 5,317.40 and 1,353.88

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Solution

The fourth proportional to 3,545.20, 5,317.40 and 1,353.88 is: 2,030.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,545.20 : 5,317.40 = 1,353.88 : x
  2. Step 2: Convert to fraction form
    3,545.20/5,317.40 = 1,353.88/x
  3. Step 3: Cross multiply
    3,545.20x = 5,317.40 × 1,353.88
  4. Step 4: Simplify right side
    3,545.20x = 7,199,123.93
  5. Step 5: Solve for x
    x = 7,199,123.93/3,545.20
  6. Step 6: Final answer
    x = 2,030.67

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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.