Home / 5,065.86-6,989.76-2,940.17

Finding the Fourth Proportional to 5,065.86, 6,989.76 and 2,940.17

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Solution

The fourth proportional to 5,065.86, 6,989.76 and 2,940.17 is: 4,056.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,065.86 : 6,989.76 = 2,940.17 : x
  2. Step 2: Convert to fraction form
    5,065.86/6,989.76 = 2,940.17/x
  3. Step 3: Cross multiply
    5,065.86x = 6,989.76 × 2,940.17
  4. Step 4: Simplify right side
    5,065.86x = 20,551,047.71
  5. Step 5: Solve for x
    x = 20,551,047.71/5,065.86
  6. Step 6: Final answer
    x = 4,056.78

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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.