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Finding the Fourth Proportional to 3,328.68, 4,991.22 and 1,870.68

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Solution

The fourth proportional to 3,328.68, 4,991.22 and 1,870.68 is: 2,805.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,328.68 : 4,991.22 = 1,870.68 : x
  2. Step 2: Convert to fraction form
    3,328.68/4,991.22 = 1,870.68/x
  3. Step 3: Cross multiply
    3,328.68x = 4,991.22 × 1,870.68
  4. Step 4: Simplify right side
    3,328.68x = 9,336,975.43
  5. Step 5: Solve for x
    x = 9,336,975.43/3,328.68
  6. Step 6: Final answer
    x = 2,805.01

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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.