Home / 5,378.29-7,421.63-3,019.98

Finding the Fourth Proportional to 5,378.29, 7,421.63 and 3,019.98

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Solution

The fourth proportional to 5,378.29, 7,421.63 and 3,019.98 is: 4,167.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,378.29 : 7,421.63 = 3,019.98 : x
  2. Step 2: Convert to fraction form
    5,378.29/7,421.63 = 3,019.98/x
  3. Step 3: Cross multiply
    5,378.29x = 7,421.63 × 3,019.98
  4. Step 4: Simplify right side
    5,378.29x = 22,413,121.96
  5. Step 5: Solve for x
    x = 22,413,121.96/5,378.29
  6. Step 6: Final answer
    x = 4,167.33

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1.5x scale

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.