Home / 5,677.67-8,513.81-1,979.45

Finding the Fourth Proportional to 5,677.67, 8,513.81 and 1,979.45

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Solution

The fourth proportional to 5,677.67, 8,513.81 and 1,979.45 is: 2,968.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,677.67 : 8,513.81 = 1,979.45 : x
  2. Step 2: Convert to fraction form
    5,677.67/8,513.81 = 1,979.45/x
  3. Step 3: Cross multiply
    5,677.67x = 8,513.81 × 1,979.45
  4. Step 4: Simplify right side
    5,677.67x = 16,852,648.09
  5. Step 5: Solve for x
    x = 16,852,648.09/5,677.67
  6. Step 6: Final answer
    x = 2,968.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.