Home / 3,428.12-4,740.12-3,372.50

Finding the Fourth Proportional to 3,428.12, 4,740.12 and 3,372.50

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Solution

The fourth proportional to 3,428.12, 4,740.12 and 3,372.50 is: 4,663.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,428.12 : 4,740.12 = 3,372.50 : x
  2. Step 2: Convert to fraction form
    3,428.12/4,740.12 = 3,372.50/x
  3. Step 3: Cross multiply
    3,428.12x = 4,740.12 × 3,372.50
  4. Step 4: Simplify right side
    3,428.12x = 15,986,031.00
  5. Step 5: Solve for x
    x = 15,986,031.00/3,428.12
  6. Step 6: Final answer
    x = 4,663.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.