Home / 2,715.12-3,740.22-1,966.86

Finding the Fourth Proportional to 2,715.12, 3,740.22 and 1,966.86

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Solution

The fourth proportional to 2,715.12, 3,740.22 and 1,966.86 is: 2,709.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,715.12 : 3,740.22 = 1,966.86 : x
  2. Step 2: Convert to fraction form
    2,715.12/3,740.22 = 1,966.86/x
  3. Step 3: Cross multiply
    2,715.12x = 3,740.22 × 1,966.86
  4. Step 4: Simplify right side
    2,715.12x = 7,356,489.11
  5. Step 5: Solve for x
    x = 7,356,489.11/2,715.12
  6. Step 6: Final answer
    x = 2,709.45

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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.