Home / 7,739.15-10,679.85-4,202.36

Finding the Fourth Proportional to 7,739.15, 10,679.85 and 4,202.36

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Solution

The fourth proportional to 7,739.15, 10,679.85 and 4,202.36 is: 5,799.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,739.15 : 10,679.85 = 4,202.36 : x
  2. Step 2: Convert to fraction form
    7,739.15/10,679.85 = 4,202.36/x
  3. Step 3: Cross multiply
    7,739.15x = 10,679.85 × 4,202.36
  4. Step 4: Simplify right side
    7,739.15x = 44,880,574.45
  5. Step 5: Solve for x
    x = 44,880,574.45/7,739.15
  6. Step 6: Final answer
    x = 5,799.16

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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.