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Finding the Fourth Proportional to 3,389.84, 5,089.08 and 2,880.08

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Solution

The fourth proportional to 3,389.84, 5,089.08 and 2,880.08 is: 4,323.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,389.84 : 5,089.08 = 2,880.08 : x
  2. Step 2: Convert to fraction form
    3,389.84/5,089.08 = 2,880.08/x
  3. Step 3: Cross multiply
    3,389.84x = 5,089.08 × 2,880.08
  4. Step 4: Simplify right side
    3,389.84x = 14,656,957.53
  5. Step 5: Solve for x
    x = 14,656,957.53/3,389.84
  6. Step 6: Final answer
    x = 4,323.79

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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.