Home / 7,406.40-10,220.98-4,049.36

Finding the Fourth Proportional to 7,406.40, 10,220.98 and 4,049.36

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Solution

The fourth proportional to 7,406.40, 10,220.98 and 4,049.36 is: 5,588.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,406.40 : 10,220.98 = 4,049.36 : x
  2. Step 2: Convert to fraction form
    7,406.40/10,220.98 = 4,049.36/x
  3. Step 3: Cross multiply
    7,406.40x = 10,220.98 × 4,049.36
  4. Step 4: Simplify right side
    7,406.40x = 41,388,366.34
  5. Step 5: Solve for x
    x = 41,388,366.34/7,406.40
  6. Step 6: Final answer
    x = 5,588.19

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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.