Home / 3,520.51-5,283.18-1,878.22

Finding the Fourth Proportional to 3,520.51, 5,283.18 and 1,878.22

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Solution

The fourth proportional to 3,520.51, 5,283.18 and 1,878.22 is: 2,818.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,520.51 : 5,283.18 = 1,878.22 : x
  2. Step 2: Convert to fraction form
    3,520.51/5,283.18 = 1,878.22/x
  3. Step 3: Cross multiply
    3,520.51x = 5,283.18 × 1,878.22
  4. Step 4: Simplify right side
    3,520.51x = 9,922,974.34
  5. Step 5: Solve for x
    x = 9,922,974.34/3,520.51
  6. Step 6: Final answer
    x = 2,818.62

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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.