Home / 1,346.17-2,019.27-480.49

Finding the Fourth Proportional to 1,346.17, 2,019.27 and 480.49

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Solution

The fourth proportional to 1,346.17, 2,019.27 and 480.49 is: 720.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,346.17 : 2,019.27 = 480.49 : x
  2. Step 2: Convert to fraction form
    1,346.17/2,019.27 = 480.49/x
  3. Step 3: Cross multiply
    1,346.17x = 2,019.27 × 480.49
  4. Step 4: Simplify right side
    1,346.17x = 970,239.04
  5. Step 5: Solve for x
    x = 970,239.04/1,346.17
  6. Step 6: Final answer
    x = 720.74

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Double scale
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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.