Home / 3,406.80-5,110.20-2,430.75

Finding the Fourth Proportional to 3,406.80, 5,110.20 and 2,430.75

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Solution

The fourth proportional to 3,406.80, 5,110.20 and 2,430.75 is: 3,646.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,406.80 : 5,110.20 = 2,430.75 : x
  2. Step 2: Convert to fraction form
    3,406.80/5,110.20 = 2,430.75/x
  3. Step 3: Cross multiply
    3,406.80x = 5,110.20 × 2,430.75
  4. Step 4: Simplify right side
    3,406.80x = 12,421,618.65
  5. Step 5: Solve for x
    x = 12,421,618.65/3,406.80
  6. Step 6: Final answer
    x = 3,646.13

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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.