Home / 3,018.87-4,167.51-1,900.35

Finding the Fourth Proportional to 3,018.87, 4,167.51 and 1,900.35

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Solution

The fourth proportional to 3,018.87, 4,167.51 and 1,900.35 is: 2,623.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,018.87 : 4,167.51 = 1,900.35 : x
  2. Step 2: Convert to fraction form
    3,018.87/4,167.51 = 1,900.35/x
  3. Step 3: Cross multiply
    3,018.87x = 4,167.51 × 1,900.35
  4. Step 4: Simplify right side
    3,018.87x = 7,919,727.63
  5. Step 5: Solve for x
    x = 7,919,727.63/3,018.87
  6. Step 6: Final answer
    x = 2,623.41

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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.