Home / 3,479.85-5,219.70-2,317.30

Finding the Fourth Proportional to 3,479.85, 5,219.70 and 2,317.30

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Solution

The fourth proportional to 3,479.85, 5,219.70 and 2,317.30 is: 3,475.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,479.85 : 5,219.70 = 2,317.30 : x
  2. Step 2: Convert to fraction form
    3,479.85/5,219.70 = 2,317.30/x
  3. Step 3: Cross multiply
    3,479.85x = 5,219.70 × 2,317.30
  4. Step 4: Simplify right side
    3,479.85x = 12,095,610.81
  5. Step 5: Solve for x
    x = 12,095,610.81/3,479.85
  6. Step 6: Final answer
    x = 3,475.90

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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.