Home / 5,646.06-7,790.94-3,128.10

Finding the Fourth Proportional to 5,646.06, 7,790.94 and 3,128.10

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Solution

The fourth proportional to 5,646.06, 7,790.94 and 3,128.10 is: 4,316.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,646.06 : 7,790.94 = 3,128.10 : x
  2. Step 2: Convert to fraction form
    5,646.06/7,790.94 = 3,128.10/x
  3. Step 3: Cross multiply
    5,646.06x = 7,790.94 × 3,128.10
  4. Step 4: Simplify right side
    5,646.06x = 24,370,839.41
  5. Step 5: Solve for x
    x = 24,370,839.41/5,646.06
  6. Step 6: Final answer
    x = 4,316.43

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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.