Home / 1,299.00-1,948.50-325.10

Finding the Fourth Proportional to 1,299.00, 1,948.50 and 325.10

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Solution

The fourth proportional to 1,299.00, 1,948.50 and 325.10 is: 487.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299.00 : 1,948.50 = 325.10 : x
  2. Step 2: Convert to fraction form
    1,299.00/1,948.50 = 325.10/x
  3. Step 3: Cross multiply
    1,299.00x = 1,948.50 × 325.10
  4. Step 4: Simplify right side
    1,299.00x = 633,445.98
  5. Step 5: Solve for x
    x = 633,445.98/1,299.00
  6. Step 6: Final answer
    x = 487.64

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Double scale
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Similar ratio
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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.