Home / 2,489.33-3,710.05-2,385.45

Finding the Fourth Proportional to 2,489.33, 3,710.05 and 2,385.45

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Solution

The fourth proportional to 2,489.33, 3,710.05 and 2,385.45 is: 3,555.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,489.33 : 3,710.05 = 2,385.45 : x
  2. Step 2: Convert to fraction form
    2,489.33/3,710.05 = 2,385.45/x
  3. Step 3: Cross multiply
    2,489.33x = 3,710.05 × 2,385.45
  4. Step 4: Simplify right side
    2,489.33x = 8,850,146.23
  5. Step 5: Solve for x
    x = 8,850,146.23/2,489.33
  6. Step 6: Final answer
    x = 3,555.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.