Home / 7,146.84-10,720.54-1,952.70

Finding the Fourth Proportional to 7,146.84, 10,720.54 and 1,952.70

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Solution

The fourth proportional to 7,146.84, 10,720.54 and 1,952.70 is: 2,929.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,146.84 : 10,720.54 = 1,952.70 : x
  2. Step 2: Convert to fraction form
    7,146.84/10,720.54 = 1,952.70/x
  3. Step 3: Cross multiply
    7,146.84x = 10,720.54 × 1,952.70
  4. Step 4: Simplify right side
    7,146.84x = 20,933,944.86
  5. Step 5: Solve for x
    x = 20,933,944.86/7,146.84
  6. Step 6: Final answer
    x = 2,929.12

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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.