Home / 3,347.40-5,015.70-2,191.80

Finding the Fourth Proportional to 3,347.40, 5,015.70 and 2,191.80

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Solution

The fourth proportional to 3,347.40, 5,015.70 and 2,191.80 is: 3,284.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,347.40 : 5,015.70 = 2,191.80 : x
  2. Step 2: Convert to fraction form
    3,347.40/5,015.70 = 2,191.80/x
  3. Step 3: Cross multiply
    3,347.40x = 5,015.70 × 2,191.80
  4. Step 4: Simplify right side
    3,347.40x = 10,993,411.26
  5. Step 5: Solve for x
    x = 10,993,411.26/3,347.40
  6. Step 6: Final answer
    x = 3,284.16

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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.