Home / 7,058.53-9,740.70-3,871.76

Finding the Fourth Proportional to 7,058.53, 9,740.70 and 3,871.76

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Solution

The fourth proportional to 7,058.53, 9,740.70 and 3,871.76 is: 5,342.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,058.53 : 9,740.70 = 3,871.76 : x
  2. Step 2: Convert to fraction form
    7,058.53/9,740.70 = 3,871.76/x
  3. Step 3: Cross multiply
    7,058.53x = 9,740.70 × 3,871.76
  4. Step 4: Simplify right side
    7,058.53x = 37,713,662.31
  5. Step 5: Solve for x
    x = 37,713,662.31/7,058.53
  6. Step 6: Final answer
    x = 5,342.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.