Home / 3,390.75-4,681.42-2,328.17

Finding the Fourth Proportional to 3,390.75, 4,681.42 and 2,328.17

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Solution

The fourth proportional to 3,390.75, 4,681.42 and 2,328.17 is: 3,214.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,390.75 : 4,681.42 = 2,328.17 : x
  2. Step 2: Convert to fraction form
    3,390.75/4,681.42 = 2,328.17/x
  3. Step 3: Cross multiply
    3,390.75x = 4,681.42 × 2,328.17
  4. Step 4: Simplify right side
    3,390.75x = 10,899,147.48
  5. Step 5: Solve for x
    x = 10,899,147.48/3,390.75
  6. Step 6: Final answer
    x = 3,214.38

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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.