Home / 3,105.04-4,285-1,707.84

Finding the Fourth Proportional to 3,105.04, 4,285 and 1,707.84

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Solution

The fourth proportional to 3,105.04, 4,285 and 1,707.84 is: 2,356.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,105.04 : 4,285 = 1,707.84 : x
  2. Step 2: Convert to fraction form
    3,105.04/4,285 = 1,707.84/x
  3. Step 3: Cross multiply
    3,105.04x = 4,285 × 1,707.84
  4. Step 4: Simplify right side
    3,105.04x = 7,318,094.40
  5. Step 5: Solve for x
    x = 7,318,094.40/3,105.04
  6. Step 6: Final answer
    x = 2,356.84

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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.