Home / 4,712.92-7,069.12-1,938.89

Finding the Fourth Proportional to 4,712.92, 7,069.12 and 1,938.89

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Solution

The fourth proportional to 4,712.92, 7,069.12 and 1,938.89 is: 2,908.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,712.92 : 7,069.12 = 1,938.89 : x
  2. Step 2: Convert to fraction form
    4,712.92/7,069.12 = 1,938.89/x
  3. Step 3: Cross multiply
    4,712.92x = 7,069.12 × 1,938.89
  4. Step 4: Simplify right side
    4,712.92x = 13,706,246.08
  5. Step 5: Solve for x
    x = 13,706,246.08/4,712.92
  6. Step 6: Final answer
    x = 2,908.23

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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.