Home / 4,812.22-7,200.35-3,428.74

Finding the Fourth Proportional to 4,812.22, 7,200.35 and 3,428.74

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Solution

The fourth proportional to 4,812.22, 7,200.35 and 3,428.74 is: 5,130.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,812.22 : 7,200.35 = 3,428.74 : x
  2. Step 2: Convert to fraction form
    4,812.22/7,200.35 = 3,428.74/x
  3. Step 3: Cross multiply
    4,812.22x = 7,200.35 × 3,428.74
  4. Step 4: Simplify right side
    4,812.22x = 24,688,128.06
  5. Step 5: Solve for x
    x = 24,688,128.06/4,812.22
  6. Step 6: Final answer
    x = 5,130.30

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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.