Home / 3,312.70-4,973.10-3,288.40

Finding the Fourth Proportional to 3,312.70, 4,973.10 and 3,288.40

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Solution

The fourth proportional to 3,312.70, 4,973.10 and 3,288.40 is: 4,936.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,312.70 : 4,973.10 = 3,288.40 : x
  2. Step 2: Convert to fraction form
    3,312.70/4,973.10 = 3,288.40/x
  3. Step 3: Cross multiply
    3,312.70x = 4,973.10 × 3,288.40
  4. Step 4: Simplify right side
    3,312.70x = 16,353,542.04
  5. Step 5: Solve for x
    x = 16,353,542.04/3,312.70
  6. Step 6: Final answer
    x = 4,936.62

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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.