Home / 2,678.18-3,695.76-1,882.67

Finding the Fourth Proportional to 2,678.18, 3,695.76 and 1,882.67

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Solution

The fourth proportional to 2,678.18, 3,695.76 and 1,882.67 is: 2,597.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,678.18 : 3,695.76 = 1,882.67 : x
  2. Step 2: Convert to fraction form
    2,678.18/3,695.76 = 1,882.67/x
  3. Step 3: Cross multiply
    2,678.18x = 3,695.76 × 1,882.67
  4. Step 4: Simplify right side
    2,678.18x = 6,957,878.00
  5. Step 5: Solve for x
    x = 6,957,878.00/2,678.18
  6. Step 6: Final answer
    x = 2,597.99

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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.