Home / 4,869.21-6,719.50-2,631.09

Finding the Fourth Proportional to 4,869.21, 6,719.50 and 2,631.09

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Solution

The fourth proportional to 4,869.21, 6,719.50 and 2,631.09 is: 3,630.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,869.21 : 6,719.50 = 2,631.09 : x
  2. Step 2: Convert to fraction form
    4,869.21/6,719.50 = 2,631.09/x
  3. Step 3: Cross multiply
    4,869.21x = 6,719.50 × 2,631.09
  4. Step 4: Simplify right side
    4,869.21x = 17,679,609.26
  5. Step 5: Solve for x
    x = 17,679,609.26/4,869.21
  6. Step 6: Final answer
    x = 3,630.90

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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.