Home / 5,402.18-8,100.02-2,111.35

Finding the Fourth Proportional to 5,402.18, 8,100.02 and 2,111.35

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Solution

The fourth proportional to 5,402.18, 8,100.02 and 2,111.35 is: 3,165.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,402.18 : 8,100.02 = 2,111.35 : x
  2. Step 2: Convert to fraction form
    5,402.18/8,100.02 = 2,111.35/x
  3. Step 3: Cross multiply
    5,402.18x = 8,100.02 × 2,111.35
  4. Step 4: Simplify right side
    5,402.18x = 17,101,962.26
  5. Step 5: Solve for x
    x = 17,101,962.26/5,402.18
  6. Step 6: Final answer
    x = 3,165.75

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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.