Home / 3,422.80-5,130.18-3,011.08

Finding the Fourth Proportional to 3,422.80, 5,130.18 and 3,011.08

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Solution

The fourth proportional to 3,422.80, 5,130.18 and 3,011.08 is: 4,513.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,422.80 : 5,130.18 = 3,011.08 : x
  2. Step 2: Convert to fraction form
    3,422.80/5,130.18 = 3,011.08/x
  3. Step 3: Cross multiply
    3,422.80x = 5,130.18 × 3,011.08
  4. Step 4: Simplify right side
    3,422.80x = 15,447,382.39
  5. Step 5: Solve for x
    x = 15,447,382.39/3,422.80
  6. Step 6: Final answer
    x = 4,513.08

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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.