Home / 3,259.40-4,889.10-3,210.80

Finding the Fourth Proportional to 3,259.40, 4,889.10 and 3,210.80

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Solution

The fourth proportional to 3,259.40, 4,889.10 and 3,210.80 is: 4,816.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,259.40 : 4,889.10 = 3,210.80 : x
  2. Step 2: Convert to fraction form
    3,259.40/4,889.10 = 3,210.80/x
  3. Step 3: Cross multiply
    3,259.40x = 4,889.10 × 3,210.80
  4. Step 4: Simplify right side
    3,259.40x = 15,697,922.28
  5. Step 5: Solve for x
    x = 15,697,922.28/3,259.40
  6. Step 6: Final answer
    x = 4,816.20

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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.