Home / 3,520.51-5,280.76-1,670.62

Finding the Fourth Proportional to 3,520.51, 5,280.76 and 1,670.62

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Solution

The fourth proportional to 3,520.51, 5,280.76 and 1,670.62 is: 2,505.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,520.51 : 5,280.76 = 1,670.62 : x
  2. Step 2: Convert to fraction form
    3,520.51/5,280.76 = 1,670.62/x
  3. Step 3: Cross multiply
    3,520.51x = 5,280.76 × 1,670.62
  4. Step 4: Simplify right side
    3,520.51x = 8,822,143.27
  5. Step 5: Solve for x
    x = 8,822,143.27/3,520.51
  6. Step 6: Final answer
    x = 2,505.93

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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.