Home / 3,113.40-4,677.30-2,141.40

Finding the Fourth Proportional to 3,113.40, 4,677.30 and 2,141.40

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Solution

The fourth proportional to 3,113.40, 4,677.30 and 2,141.40 is: 3,217.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,113.40 : 4,677.30 = 2,141.40 : x
  2. Step 2: Convert to fraction form
    3,113.40/4,677.30 = 2,141.40/x
  3. Step 3: Cross multiply
    3,113.40x = 4,677.30 × 2,141.40
  4. Step 4: Simplify right side
    3,113.40x = 10,015,970.22
  5. Step 5: Solve for x
    x = 10,015,970.22/3,113.40
  6. Step 6: Final answer
    x = 3,217.05

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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.