Home / 3,315.11-4,574.99-1,988.33

Finding the Fourth Proportional to 3,315.11, 4,574.99 and 1,988.33

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Solution

The fourth proportional to 3,315.11, 4,574.99 and 1,988.33 is: 2,743.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,315.11 : 4,574.99 = 1,988.33 : x
  2. Step 2: Convert to fraction form
    3,315.11/4,574.99 = 1,988.33/x
  3. Step 3: Cross multiply
    3,315.11x = 4,574.99 × 1,988.33
  4. Step 4: Simplify right side
    3,315.11x = 9,096,579.93
  5. Step 5: Solve for x
    x = 9,096,579.93/3,315.11
  6. Step 6: Final answer
    x = 2,743.98

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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.