Home / 3,317.20-4,971.60-1,674.20

Finding the Fourth Proportional to 3,317.20, 4,971.60 and 1,674.20

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Solution

The fourth proportional to 3,317.20, 4,971.60 and 1,674.20 is: 2,509.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,317.20 : 4,971.60 = 1,674.20 : x
  2. Step 2: Convert to fraction form
    3,317.20/4,971.60 = 1,674.20/x
  3. Step 3: Cross multiply
    3,317.20x = 4,971.60 × 1,674.20
  4. Step 4: Simplify right side
    3,317.20x = 8,323,452.72
  5. Step 5: Solve for x
    x = 8,323,452.72/3,317.20
  6. Step 6: Final answer
    x = 2,509.18

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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.