Home / 4,751.34-7,127.37-1,288.50

Finding the Fourth Proportional to 4,751.34, 7,127.37 and 1,288.50

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Solution

The fourth proportional to 4,751.34, 7,127.37 and 1,288.50 is: 1,932.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,751.34 : 7,127.37 = 1,288.50 : x
  2. Step 2: Convert to fraction form
    4,751.34/7,127.37 = 1,288.50/x
  3. Step 3: Cross multiply
    4,751.34x = 7,127.37 × 1,288.50
  4. Step 4: Simplify right side
    4,751.34x = 9,183,616.25
  5. Step 5: Solve for x
    x = 9,183,616.25/4,751.34
  6. Step 6: Final answer
    x = 1,932.85

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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.