Home / 4,678.12-7,019.34-2,082.76

Finding the Fourth Proportional to 4,678.12, 7,019.34 and 2,082.76

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Solution

The fourth proportional to 4,678.12, 7,019.34 and 2,082.76 is: 3,125.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,678.12 : 7,019.34 = 2,082.76 : x
  2. Step 2: Convert to fraction form
    4,678.12/7,019.34 = 2,082.76/x
  3. Step 3: Cross multiply
    4,678.12x = 7,019.34 × 2,082.76
  4. Step 4: Simplify right side
    4,678.12x = 14,619,600.58
  5. Step 5: Solve for x
    x = 14,619,600.58/4,678.12
  6. Step 6: Final answer
    x = 3,125.10

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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.