Home / 3,108.04-4,285.54-2,320.76

Finding the Fourth Proportional to 3,108.04, 4,285.54 and 2,320.76

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Solution

The fourth proportional to 3,108.04, 4,285.54 and 2,320.76 is: 3,199.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,108.04 : 4,285.54 = 2,320.76 : x
  2. Step 2: Convert to fraction form
    3,108.04/4,285.54 = 2,320.76/x
  3. Step 3: Cross multiply
    3,108.04x = 4,285.54 × 2,320.76
  4. Step 4: Simplify right side
    3,108.04x = 9,945,709.81
  5. Step 5: Solve for x
    x = 9,945,709.81/3,108.04
  6. Step 6: Final answer
    x = 3,199.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.