Home / 4,972.50-7,458.75-1,324.50

Finding the Fourth Proportional to 4,972.50, 7,458.75 and 1,324.50

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Solution

The fourth proportional to 4,972.50, 7,458.75 and 1,324.50 is: 1,986.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,972.50 : 7,458.75 = 1,324.50 : x
  2. Step 2: Convert to fraction form
    4,972.50/7,458.75 = 1,324.50/x
  3. Step 3: Cross multiply
    4,972.50x = 7,458.75 × 1,324.50
  4. Step 4: Simplify right side
    4,972.50x = 9,879,114.38
  5. Step 5: Solve for x
    x = 9,879,114.38/4,972.50
  6. Step 6: Final answer
    x = 1,986.75

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Double scale
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Similar ratio
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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.