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Finding the Fourth Proportional to 3,527.35, 5,291.09 and 1,678.09

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Solution

The fourth proportional to 3,527.35, 5,291.09 and 1,678.09 is: 2,517.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,527.35 : 5,291.09 = 1,678.09 : x
  2. Step 2: Convert to fraction form
    3,527.35/5,291.09 = 1,678.09/x
  3. Step 3: Cross multiply
    3,527.35x = 5,291.09 × 1,678.09
  4. Step 4: Simplify right side
    3,527.35x = 8,878,925.22
  5. Step 5: Solve for x
    x = 8,878,925.22/3,527.35
  6. Step 6: Final answer
    x = 2,517.17

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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.