Home / 4,428.48-6,640.56-3,132.48

Finding the Fourth Proportional to 4,428.48, 6,640.56 and 3,132.48

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Solution

The fourth proportional to 4,428.48, 6,640.56 and 3,132.48 is: 4,697.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,428.48 : 6,640.56 = 3,132.48 : x
  2. Step 2: Convert to fraction form
    4,428.48/6,640.56 = 3,132.48/x
  3. Step 3: Cross multiply
    4,428.48x = 6,640.56 × 3,132.48
  4. Step 4: Simplify right side
    4,428.48x = 20,801,421.39
  5. Step 5: Solve for x
    x = 20,801,421.39/4,428.48
  6. Step 6: Final answer
    x = 4,697.19

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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.