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Finding the Fourth Proportional to 3,477.39, 5,215.68 and 880.13

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Solution

The fourth proportional to 3,477.39, 5,215.68 and 880.13 is: 1,320.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,477.39 : 5,215.68 = 880.13 : x
  2. Step 2: Convert to fraction form
    3,477.39/5,215.68 = 880.13/x
  3. Step 3: Cross multiply
    3,477.39x = 5,215.68 × 880.13
  4. Step 4: Simplify right side
    3,477.39x = 4,590,450.36
  5. Step 5: Solve for x
    x = 4,590,450.36/3,477.39
  6. Step 6: Final answer
    x = 1,320.08

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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.