Home / 3,013.30-4,521.57-1,918.18

Finding the Fourth Proportional to 3,013.30, 4,521.57 and 1,918.18

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Solution

The fourth proportional to 3,013.30, 4,521.57 and 1,918.18 is: 2,878.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,013.30 : 4,521.57 = 1,918.18 : x
  2. Step 2: Convert to fraction form
    3,013.30/4,521.57 = 1,918.18/x
  3. Step 3: Cross multiply
    3,013.30x = 4,521.57 × 1,918.18
  4. Step 4: Simplify right side
    3,013.30x = 8,673,185.14
  5. Step 5: Solve for x
    x = 8,673,185.14/3,013.30
  6. Step 6: Final answer
    x = 2,878.30

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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.