Home / 4,291.42-6,438.21-1,369.72

Finding the Fourth Proportional to 4,291.42, 6,438.21 and 1,369.72

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Solution

The fourth proportional to 4,291.42, 6,438.21 and 1,369.72 is: 2,054.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,291.42 : 6,438.21 = 1,369.72 : x
  2. Step 2: Convert to fraction form
    4,291.42/6,438.21 = 1,369.72/x
  3. Step 3: Cross multiply
    4,291.42x = 6,438.21 × 1,369.72
  4. Step 4: Simplify right side
    4,291.42x = 8,818,560.82
  5. Step 5: Solve for x
    x = 8,818,560.82/4,291.42
  6. Step 6: Final answer
    x = 2,054.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.