Home / 4,680.58-7,019.66-1,392.80

Finding the Fourth Proportional to 4,680.58, 7,019.66 and 1,392.80

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Solution

The fourth proportional to 4,680.58, 7,019.66 and 1,392.80 is: 2,088.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,680.58 : 7,019.66 = 1,392.80 : x
  2. Step 2: Convert to fraction form
    4,680.58/7,019.66 = 1,392.80/x
  3. Step 3: Cross multiply
    4,680.58x = 7,019.66 × 1,392.80
  4. Step 4: Simplify right side
    4,680.58x = 9,776,982.45
  5. Step 5: Solve for x
    x = 9,776,982.45/4,680.58
  6. Step 6: Final answer
    x = 2,088.84

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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.