Home / 7,351.81-10,145.40-3,994.46

Finding the Fourth Proportional to 7,351.81, 10,145.40 and 3,994.46

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Solution

The fourth proportional to 7,351.81, 10,145.40 and 3,994.46 is: 5,512.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,351.81 : 10,145.40 = 3,994.46 : x
  2. Step 2: Convert to fraction form
    7,351.81/10,145.40 = 3,994.46/x
  3. Step 3: Cross multiply
    7,351.81x = 10,145.40 × 3,994.46
  4. Step 4: Simplify right side
    7,351.81x = 40,525,446.36
  5. Step 5: Solve for x
    x = 40,525,446.36/7,351.81
  6. Step 6: Final answer
    x = 5,512.31

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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.