Home / 3,487.74-5,228.37-1,538.88

Finding the Fourth Proportional to 3,487.74, 5,228.37 and 1,538.88

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Solution

The fourth proportional to 3,487.74, 5,228.37 and 1,538.88 is: 2,306.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,487.74 : 5,228.37 = 1,538.88 : x
  2. Step 2: Convert to fraction form
    3,487.74/5,228.37 = 1,538.88/x
  3. Step 3: Cross multiply
    3,487.74x = 5,228.37 × 1,538.88
  4. Step 4: Simplify right side
    3,487.74x = 8,045,834.03
  5. Step 5: Solve for x
    x = 8,045,834.03/3,487.74
  6. Step 6: Final answer
    x = 2,306.89

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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.