Home / 5,142.58-7,710.96-1,631.92

Finding the Fourth Proportional to 5,142.58, 7,710.96 and 1,631.92

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Solution

The fourth proportional to 5,142.58, 7,710.96 and 1,631.92 is: 2,446.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,142.58 : 7,710.96 = 1,631.92 : x
  2. Step 2: Convert to fraction form
    5,142.58/7,710.96 = 1,631.92/x
  3. Step 3: Cross multiply
    5,142.58x = 7,710.96 × 1,631.92
  4. Step 4: Simplify right side
    5,142.58x = 12,583,669.84
  5. Step 5: Solve for x
    x = 12,583,669.84/5,142.58
  6. Step 6: Final answer
    x = 2,446.96

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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.