Home / 3,122.04-4,308.34-1,724.76

Finding the Fourth Proportional to 3,122.04, 4,308.34 and 1,724.76

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Solution

The fourth proportional to 3,122.04, 4,308.34 and 1,724.76 is: 2,380.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,122.04 : 4,308.34 = 1,724.76 : x
  2. Step 2: Convert to fraction form
    3,122.04/4,308.34 = 1,724.76/x
  3. Step 3: Cross multiply
    3,122.04x = 4,308.34 × 1,724.76
  4. Step 4: Simplify right side
    3,122.04x = 7,430,852.50
  5. Step 5: Solve for x
    x = 7,430,852.50/3,122.04
  6. Step 6: Final answer
    x = 2,380.13

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Half scale
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Double scale
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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.