Home / 5,536.71-7,638.81-3,146.40

Finding the Fourth Proportional to 5,536.71, 7,638.81 and 3,146.40

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Solution

The fourth proportional to 5,536.71, 7,638.81 and 3,146.40 is: 4,340.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,536.71 : 7,638.81 = 3,146.40 : x
  2. Step 2: Convert to fraction form
    5,536.71/7,638.81 = 3,146.40/x
  3. Step 3: Cross multiply
    5,536.71x = 7,638.81 × 3,146.40
  4. Step 4: Simplify right side
    5,536.71x = 24,034,751.78
  5. Step 5: Solve for x
    x = 24,034,751.78/5,536.71
  6. Step 6: Final answer
    x = 4,340.98

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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.