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Finding the Fourth Proportional to 4,880.39, 6,733.35 and 2,989.98

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Solution

The fourth proportional to 4,880.39, 6,733.35 and 2,989.98 is: 4,125.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,880.39 : 6,733.35 = 2,989.98 : x
  2. Step 2: Convert to fraction form
    4,880.39/6,733.35 = 2,989.98/x
  3. Step 3: Cross multiply
    4,880.39x = 6,733.35 × 2,989.98
  4. Step 4: Simplify right side
    4,880.39x = 20,132,581.83
  5. Step 5: Solve for x
    x = 20,132,581.83/4,880.39
  6. Step 6: Final answer
    x = 4,125.20

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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.