Home / 2,639.16-3,635.28-2,219.04

Finding the Fourth Proportional to 2,639.16, 3,635.28 and 2,219.04

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Solution

The fourth proportional to 2,639.16, 3,635.28 and 2,219.04 is: 3,056.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,639.16 : 3,635.28 = 2,219.04 : x
  2. Step 2: Convert to fraction form
    2,639.16/3,635.28 = 2,219.04/x
  3. Step 3: Cross multiply
    2,639.16x = 3,635.28 × 2,219.04
  4. Step 4: Simplify right side
    2,639.16x = 8,066,831.73
  5. Step 5: Solve for x
    x = 8,066,831.73/2,639.16
  6. Step 6: Final answer
    x = 3,056.59

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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.