Home / 3,420.29-5,125.88-1,663.13

Finding the Fourth Proportional to 3,420.29, 5,125.88 and 1,663.13

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Solution

The fourth proportional to 3,420.29, 5,125.88 and 1,663.13 is: 2,492.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,420.29 : 5,125.88 = 1,663.13 : x
  2. Step 2: Convert to fraction form
    3,420.29/5,125.88 = 1,663.13/x
  3. Step 3: Cross multiply
    3,420.29x = 5,125.88 × 1,663.13
  4. Step 4: Simplify right side
    3,420.29x = 8,525,021.78
  5. Step 5: Solve for x
    x = 8,525,021.78/3,420.29
  6. Step 6: Final answer
    x = 2,492.48

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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.