Home / 5,411.36-8,117.67-2,124.02

Finding the Fourth Proportional to 5,411.36, 8,117.67 and 2,124.02

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Solution

The fourth proportional to 5,411.36, 8,117.67 and 2,124.02 is: 3,186.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,411.36 : 8,117.67 = 2,124.02 : x
  2. Step 2: Convert to fraction form
    5,411.36/8,117.67 = 2,124.02/x
  3. Step 3: Cross multiply
    5,411.36x = 8,117.67 × 2,124.02
  4. Step 4: Simplify right side
    5,411.36x = 17,242,109.75
  5. Step 5: Solve for x
    x = 17,242,109.75/5,411.36
  6. Step 6: Final answer
    x = 3,186.28

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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.