Home / 3,240.07-4,860.78-1,160.12

Finding the Fourth Proportional to 3,240.07, 4,860.78 and 1,160.12

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Solution

The fourth proportional to 3,240.07, 4,860.78 and 1,160.12 is: 1,740.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,240.07 : 4,860.78 = 1,160.12 : x
  2. Step 2: Convert to fraction form
    3,240.07/4,860.78 = 1,160.12/x
  3. Step 3: Cross multiply
    3,240.07x = 4,860.78 × 1,160.12
  4. Step 4: Simplify right side
    3,240.07x = 5,639,095.90
  5. Step 5: Solve for x
    x = 5,639,095.90/3,240.07
  6. Step 6: Final answer
    x = 1,740.43

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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.