Home / 5,065.81-6,990.79-2,827.55

Finding the Fourth Proportional to 5,065.81, 6,990.79 and 2,827.55

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Solution

The fourth proportional to 5,065.81, 6,990.79 and 2,827.55 is: 3,902.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,065.81 : 6,990.79 = 2,827.55 : x
  2. Step 2: Convert to fraction form
    5,065.81/6,990.79 = 2,827.55/x
  3. Step 3: Cross multiply
    5,065.81x = 6,990.79 × 2,827.55
  4. Step 4: Simplify right side
    5,065.81x = 19,766,808.26
  5. Step 5: Solve for x
    x = 19,766,808.26/5,065.81
  6. Step 6: Final answer
    x = 3,902.00

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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.