Home / 3,223.40-4,838.70-3,011.90

Finding the Fourth Proportional to 3,223.40, 4,838.70 and 3,011.90

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Solution

The fourth proportional to 3,223.40, 4,838.70 and 3,011.90 is: 4,521.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,223.40 : 4,838.70 = 3,011.90 : x
  2. Step 2: Convert to fraction form
    3,223.40/4,838.70 = 3,011.90/x
  3. Step 3: Cross multiply
    3,223.40x = 4,838.70 × 3,011.90
  4. Step 4: Simplify right side
    3,223.40x = 14,573,680.53
  5. Step 5: Solve for x
    x = 14,573,680.53/3,223.40
  6. Step 6: Final answer
    x = 4,521.21

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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.