Home / 2,113.40-3,170.78-1,017.84

Finding the Fourth Proportional to 2,113.40, 3,170.78 and 1,017.84

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Solution

The fourth proportional to 2,113.40, 3,170.78 and 1,017.84 is: 1,527.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,113.40 : 3,170.78 = 1,017.84 : x
  2. Step 2: Convert to fraction form
    2,113.40/3,170.78 = 1,017.84/x
  3. Step 3: Cross multiply
    2,113.40x = 3,170.78 × 1,017.84
  4. Step 4: Simplify right side
    2,113.40x = 3,227,341.63
  5. Step 5: Solve for x
    x = 3,227,341.63/2,113.40
  6. Step 6: Final answer
    x = 1,527.09

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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.