Home / 2,005.04-3,007.85-618.49

Finding the Fourth Proportional to 2,005.04, 3,007.85 and 618.49

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Solution

The fourth proportional to 2,005.04, 3,007.85 and 618.49 is: 927.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,005.04 : 3,007.85 = 618.49 : x
  2. Step 2: Convert to fraction form
    2,005.04/3,007.85 = 618.49/x
  3. Step 3: Cross multiply
    2,005.04x = 3,007.85 × 618.49
  4. Step 4: Simplify right side
    2,005.04x = 1,860,322.05
  5. Step 5: Solve for x
    x = 1,860,322.05/2,005.04
  6. Step 6: Final answer
    x = 927.82

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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.