Home / 3,317.15-4,576.13-1,988.55

Finding the Fourth Proportional to 3,317.15, 4,576.13 and 1,988.55

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Solution

The fourth proportional to 3,317.15, 4,576.13 and 1,988.55 is: 2,743.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,317.15 : 4,576.13 = 1,988.55 : x
  2. Step 2: Convert to fraction form
    3,317.15/4,576.13 = 1,988.55/x
  3. Step 3: Cross multiply
    3,317.15x = 4,576.13 × 1,988.55
  4. Step 4: Simplify right side
    3,317.15x = 9,099,853.37
  5. Step 5: Solve for x
    x = 9,099,853.37/3,317.15
  6. Step 6: Final answer
    x = 2,743.28

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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.