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Finding the Fourth Proportional to 5,065.69, 6,990.06 and 2,827.49

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Solution

The fourth proportional to 5,065.69, 6,990.06 and 2,827.49 is: 3,901.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,065.69 : 6,990.06 = 2,827.49 : x
  2. Step 2: Convert to fraction form
    5,065.69/6,990.06 = 2,827.49/x
  3. Step 3: Cross multiply
    5,065.69x = 6,990.06 × 2,827.49
  4. Step 4: Simplify right side
    5,065.69x = 19,764,300.40
  5. Step 5: Solve for x
    x = 19,764,300.40/5,065.69
  6. Step 6: Final answer
    x = 3,901.60

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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.