Home / 3,018.65-4,167.52-1,900.54

Finding the Fourth Proportional to 3,018.65, 4,167.52 and 1,900.54

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Solution

The fourth proportional to 3,018.65, 4,167.52 and 1,900.54 is: 2,623.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,018.65 : 4,167.52 = 1,900.54 : x
  2. Step 2: Convert to fraction form
    3,018.65/4,167.52 = 1,900.54/x
  3. Step 3: Cross multiply
    3,018.65x = 4,167.52 × 1,900.54
  4. Step 4: Simplify right side
    3,018.65x = 7,920,538.92
  5. Step 5: Solve for x
    x = 7,920,538.92/3,018.65
  6. Step 6: Final answer
    x = 2,623.87

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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.