Home / 3,360.71-4,639.86-2,166.12

Finding the Fourth Proportional to 3,360.71, 4,639.86 and 2,166.12

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Solution

The fourth proportional to 3,360.71, 4,639.86 and 2,166.12 is: 2,990.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,360.71 : 4,639.86 = 2,166.12 : x
  2. Step 2: Convert to fraction form
    3,360.71/4,639.86 = 2,166.12/x
  3. Step 3: Cross multiply
    3,360.71x = 4,639.86 × 2,166.12
  4. Step 4: Simplify right side
    3,360.71x = 10,050,476.53
  5. Step 5: Solve for x
    x = 10,050,476.53/3,360.71
  6. Step 6: Final answer
    x = 2,990.58

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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.