Home / 3,036.40-4,552.71-1,280.50

Finding the Fourth Proportional to 3,036.40, 4,552.71 and 1,280.50

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Solution

The fourth proportional to 3,036.40, 4,552.71 and 1,280.50 is: 1,919.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,036.40 : 4,552.71 = 1,280.50 : x
  2. Step 2: Convert to fraction form
    3,036.40/4,552.71 = 1,280.50/x
  3. Step 3: Cross multiply
    3,036.40x = 4,552.71 × 1,280.50
  4. Step 4: Simplify right side
    3,036.40x = 5,829,715.99
  5. Step 5: Solve for x
    x = 5,829,715.99/3,036.40
  6. Step 6: Final answer
    x = 1,919.95

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Half scale
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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.