Home / 7,649.21-10,555.74-4,291.96

Finding the Fourth Proportional to 7,649.21, 10,555.74 and 4,291.96

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Solution

The fourth proportional to 7,649.21, 10,555.74 and 4,291.96 is: 5,922.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,649.21 : 10,555.74 = 4,291.96 : x
  2. Step 2: Convert to fraction form
    7,649.21/10,555.74 = 4,291.96/x
  3. Step 3: Cross multiply
    7,649.21x = 10,555.74 × 4,291.96
  4. Step 4: Simplify right side
    7,649.21x = 45,304,813.85
  5. Step 5: Solve for x
    x = 45,304,813.85/7,649.21
  6. Step 6: Final answer
    x = 5,922.81

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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.