Home / 7,140.37-10,710.56-4,171.54

Finding the Fourth Proportional to 7,140.37, 10,710.56 and 4,171.54

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Solution

The fourth proportional to 7,140.37, 10,710.56 and 4,171.54 is: 6,257.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,140.37 : 10,710.56 = 4,171.54 : x
  2. Step 2: Convert to fraction form
    7,140.37/10,710.56 = 4,171.54/x
  3. Step 3: Cross multiply
    7,140.37x = 10,710.56 × 4,171.54
  4. Step 4: Simplify right side
    7,140.37x = 44,679,529.46
  5. Step 5: Solve for x
    x = 44,679,529.46/7,140.37
  6. Step 6: Final answer
    x = 6,257.31

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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.