Home / 3,400.71-4,706.47-3,318.90

Finding the Fourth Proportional to 3,400.71, 4,706.47 and 3,318.90

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Solution

The fourth proportional to 3,400.71, 4,706.47 and 3,318.90 is: 4,593.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,400.71 : 4,706.47 = 3,318.90 : x
  2. Step 2: Convert to fraction form
    3,400.71/4,706.47 = 3,318.90/x
  3. Step 3: Cross multiply
    3,400.71x = 4,706.47 × 3,318.90
  4. Step 4: Simplify right side
    3,400.71x = 15,620,303.28
  5. Step 5: Solve for x
    x = 15,620,303.28/3,400.71
  6. Step 6: Final answer
    x = 4,593.25

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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.