Home / 4,680.12-7,020.45-1,758.45

Finding the Fourth Proportional to 4,680.12, 7,020.45 and 1,758.45

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Solution

The fourth proportional to 4,680.12, 7,020.45 and 1,758.45 is: 2,637.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,680.12 : 7,020.45 = 1,758.45 : x
  2. Step 2: Convert to fraction form
    4,680.12/7,020.45 = 1,758.45/x
  3. Step 3: Cross multiply
    4,680.12x = 7,020.45 × 1,758.45
  4. Step 4: Simplify right side
    4,680.12x = 12,345,110.30
  5. Step 5: Solve for x
    x = 12,345,110.30/4,680.12
  6. Step 6: Final answer
    x = 2,637.78

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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.