Home / 3,213.95-4,823.89-1,983.76

Finding the Fourth Proportional to 3,213.95, 4,823.89 and 1,983.76

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Solution

The fourth proportional to 3,213.95, 4,823.89 and 1,983.76 is: 2,977.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,213.95 : 4,823.89 = 1,983.76 : x
  2. Step 2: Convert to fraction form
    3,213.95/4,823.89 = 1,983.76/x
  3. Step 3: Cross multiply
    3,213.95x = 4,823.89 × 1,983.76
  4. Step 4: Simplify right side
    3,213.95x = 9,569,423.01
  5. Step 5: Solve for x
    x = 9,569,423.01/3,213.95
  6. Step 6: Final answer
    x = 2,977.47

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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.