Home / 2,318.25-3,477.95-674.81

Finding the Fourth Proportional to 2,318.25, 3,477.95 and 674.81

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Solution

The fourth proportional to 2,318.25, 3,477.95 and 674.81 is: 1,012.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,318.25 : 3,477.95 = 674.81 : x
  2. Step 2: Convert to fraction form
    2,318.25/3,477.95 = 674.81/x
  3. Step 3: Cross multiply
    2,318.25x = 3,477.95 × 674.81
  4. Step 4: Simplify right side
    2,318.25x = 2,346,948.35
  5. Step 5: Solve for x
    x = 2,346,948.35/2,318.25
  6. Step 6: Final answer
    x = 1,012.38

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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.