Home / 4,681.92-7,019.40-2,213.85

Finding the Fourth Proportional to 4,681.92, 7,019.40 and 2,213.85

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Solution

The fourth proportional to 4,681.92, 7,019.40 and 2,213.85 is: 3,319.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,681.92 : 7,019.40 = 2,213.85 : x
  2. Step 2: Convert to fraction form
    4,681.92/7,019.40 = 2,213.85/x
  3. Step 3: Cross multiply
    4,681.92x = 7,019.40 × 2,213.85
  4. Step 4: Simplify right side
    4,681.92x = 15,539,898.69
  5. Step 5: Solve for x
    x = 15,539,898.69/4,681.92
  6. Step 6: Final answer
    x = 3,319.13

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1.5x scale

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.