Home / 1,515.62-2,092.77-984.77

Finding the Fourth Proportional to 1,515.62, 2,092.77 and 984.77

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Solution

The fourth proportional to 1,515.62, 2,092.77 and 984.77 is: 1,359.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,515.62 : 2,092.77 = 984.77 : x
  2. Step 2: Convert to fraction form
    1,515.62/2,092.77 = 984.77/x
  3. Step 3: Cross multiply
    1,515.62x = 2,092.77 × 984.77
  4. Step 4: Simplify right side
    1,515.62x = 2,060,894.50
  5. Step 5: Solve for x
    x = 2,060,894.50/1,515.62
  6. Step 6: Final answer
    x = 1,359.77

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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.