Home / 5,189.84-7,785.26-1,902.14

Finding the Fourth Proportional to 5,189.84, 7,785.26 and 1,902.14

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Solution

The fourth proportional to 5,189.84, 7,785.26 and 1,902.14 is: 2,853.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,189.84 : 7,785.26 = 1,902.14 : x
  2. Step 2: Convert to fraction form
    5,189.84/7,785.26 = 1,902.14/x
  3. Step 3: Cross multiply
    5,189.84x = 7,785.26 × 1,902.14
  4. Step 4: Simplify right side
    5,189.84x = 14,808,654.46
  5. Step 5: Solve for x
    x = 14,808,654.46/5,189.84
  6. Step 6: Final answer
    x = 2,853.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.