Home / 3,290.50-4,542.96-2,113.62

Finding the Fourth Proportional to 3,290.50, 4,542.96 and 2,113.62

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Solution

The fourth proportional to 3,290.50, 4,542.96 and 2,113.62 is: 2,918.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,290.50 : 4,542.96 = 2,113.62 : x
  2. Step 2: Convert to fraction form
    3,290.50/4,542.96 = 2,113.62/x
  3. Step 3: Cross multiply
    3,290.50x = 4,542.96 × 2,113.62
  4. Step 4: Simplify right side
    3,290.50x = 9,602,091.12
  5. Step 5: Solve for x
    x = 9,602,091.12/3,290.50
  6. Step 6: Final answer
    x = 2,918.13

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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.