Home / 4,678.12-7,017.18-1,906.30

Finding the Fourth Proportional to 4,678.12, 7,017.18 and 1,906.30

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Solution

The fourth proportional to 4,678.12, 7,017.18 and 1,906.30 is: 2,859.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,678.12 : 7,017.18 = 1,906.30 : x
  2. Step 2: Convert to fraction form
    4,678.12/7,017.18 = 1,906.30/x
  3. Step 3: Cross multiply
    4,678.12x = 7,017.18 × 1,906.30
  4. Step 4: Simplify right side
    4,678.12x = 13,376,850.23
  5. Step 5: Solve for x
    x = 13,376,850.23/4,678.12
  6. Step 6: Final answer
    x = 2,859.45

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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.