Home / 4,289.94-6,434.80-1,981.44

Finding the Fourth Proportional to 4,289.94, 6,434.80 and 1,981.44

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Solution

The fourth proportional to 4,289.94, 6,434.80 and 1,981.44 is: 2,972.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,289.94 : 6,434.80 = 1,981.44 : x
  2. Step 2: Convert to fraction form
    4,289.94/6,434.80 = 1,981.44/x
  3. Step 3: Cross multiply
    4,289.94x = 6,434.80 × 1,981.44
  4. Step 4: Simplify right side
    4,289.94x = 12,750,170.11
  5. Step 5: Solve for x
    x = 12,750,170.11/4,289.94
  6. Step 6: Final answer
    x = 2,972.11

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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.