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Finding the Fourth Proportional to 7,203.84, 10,812.60 and 3,508.08

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Solution

The fourth proportional to 7,203.84, 10,812.60 and 3,508.08 is: 5,265.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,203.84 : 10,812.60 = 3,508.08 : x
  2. Step 2: Convert to fraction form
    7,203.84/10,812.60 = 3,508.08/x
  3. Step 3: Cross multiply
    7,203.84x = 10,812.60 × 3,508.08
  4. Step 4: Simplify right side
    7,203.84x = 37,931,465.81
  5. Step 5: Solve for x
    x = 37,931,465.81/7,203.84
  6. Step 6: Final answer
    x = 5,265.45

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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.