Home / 3,120.60-4,680.90-3,065.93

Finding the Fourth Proportional to 3,120.60, 4,680.90 and 3,065.93

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Solution

The fourth proportional to 3,120.60, 4,680.90 and 3,065.93 is: 4,598.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120.60 : 4,680.90 = 3,065.93 : x
  2. Step 2: Convert to fraction form
    3,120.60/4,680.90 = 3,065.93/x
  3. Step 3: Cross multiply
    3,120.60x = 4,680.90 × 3,065.93
  4. Step 4: Simplify right side
    3,120.60x = 14,351,311.74
  5. Step 5: Solve for x
    x = 14,351,311.74/3,120.60
  6. Step 6: Final answer
    x = 4,598.90

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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.