Home / 5,688.12-8,513.40-3,486.48

Finding the Fourth Proportional to 5,688.12, 8,513.40 and 3,486.48

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Solution

The fourth proportional to 5,688.12, 8,513.40 and 3,486.48 is: 5,218.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,688.12 : 8,513.40 = 3,486.48 : x
  2. Step 2: Convert to fraction form
    5,688.12/8,513.40 = 3,486.48/x
  3. Step 3: Cross multiply
    5,688.12x = 8,513.40 × 3,486.48
  4. Step 4: Simplify right side
    5,688.12x = 29,681,798.83
  5. Step 5: Solve for x
    x = 29,681,798.83/5,688.12
  6. Step 6: Final answer
    x = 5,218.21

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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.