Home / 5,065.39-6,990.59-2,827.70

Finding the Fourth Proportional to 5,065.39, 6,990.59 and 2,827.70

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Solution

The fourth proportional to 5,065.39, 6,990.59 and 2,827.70 is: 3,902.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,065.39 : 6,990.59 = 2,827.70 : x
  2. Step 2: Convert to fraction form
    5,065.39/6,990.59 = 2,827.70/x
  3. Step 3: Cross multiply
    5,065.39x = 6,990.59 × 2,827.70
  4. Step 4: Simplify right side
    5,065.39x = 19,767,291.34
  5. Step 5: Solve for x
    x = 19,767,291.34/5,065.39
  6. Step 6: Final answer
    x = 3,902.42

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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.