Home / 3,538.84-5,304.48-1,688.80

Finding the Fourth Proportional to 3,538.84, 5,304.48 and 1,688.80

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Solution

The fourth proportional to 3,538.84, 5,304.48 and 1,688.80 is: 2,531.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,538.84 : 5,304.48 = 1,688.80 : x
  2. Step 2: Convert to fraction form
    3,538.84/5,304.48 = 1,688.80/x
  3. Step 3: Cross multiply
    3,538.84x = 5,304.48 × 1,688.80
  4. Step 4: Simplify right side
    3,538.84x = 8,958,205.82
  5. Step 5: Solve for x
    x = 8,958,205.82/3,538.84
  6. Step 6: Final answer
    x = 2,531.40

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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.