Home / 4,291.79-6,438.90-2,538.35

Finding the Fourth Proportional to 4,291.79, 6,438.90 and 2,538.35

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Solution

The fourth proportional to 4,291.79, 6,438.90 and 2,538.35 is: 3,808.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,291.79 : 6,438.90 = 2,538.35 : x
  2. Step 2: Convert to fraction form
    4,291.79/6,438.90 = 2,538.35/x
  3. Step 3: Cross multiply
    4,291.79x = 6,438.90 × 2,538.35
  4. Step 4: Simplify right side
    4,291.79x = 16,344,181.82
  5. Step 5: Solve for x
    x = 16,344,181.82/4,291.79
  6. Step 6: Final answer
    x = 3,808.24

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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.