Home / 3,430.64-5,152.20-3,291.44

Finding the Fourth Proportional to 3,430.64, 5,152.20 and 3,291.44

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Solution

The fourth proportional to 3,430.64, 5,152.20 and 3,291.44 is: 4,943.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,430.64 : 5,152.20 = 3,291.44 : x
  2. Step 2: Convert to fraction form
    3,430.64/5,152.20 = 3,291.44/x
  3. Step 3: Cross multiply
    3,430.64x = 5,152.20 × 3,291.44
  4. Step 4: Simplify right side
    3,430.64x = 16,958,157.17
  5. Step 5: Solve for x
    x = 16,958,157.17/3,430.64
  6. Step 6: Final answer
    x = 4,943.15

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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.