Home / 3,315.92-4,574.06-1,988.85

Finding the Fourth Proportional to 3,315.92, 4,574.06 and 1,988.85

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Solution

The fourth proportional to 3,315.92, 4,574.06 and 1,988.85 is: 2,743.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,315.92 : 4,574.06 = 1,988.85 : x
  2. Step 2: Convert to fraction form
    3,315.92/4,574.06 = 1,988.85/x
  3. Step 3: Cross multiply
    3,315.92x = 4,574.06 × 1,988.85
  4. Step 4: Simplify right side
    3,315.92x = 9,097,119.23
  5. Step 5: Solve for x
    x = 9,097,119.23/3,315.92
  6. Step 6: Final answer
    x = 2,743.47

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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.