Home / 5,384.51-8,076.76-1,687.03

Finding the Fourth Proportional to 5,384.51, 8,076.76 and 1,687.03

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Solution

The fourth proportional to 5,384.51, 8,076.76 and 1,687.03 is: 2,530.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,384.51 : 8,076.76 = 1,687.03 : x
  2. Step 2: Convert to fraction form
    5,384.51/8,076.76 = 1,687.03/x
  3. Step 3: Cross multiply
    5,384.51x = 8,076.76 × 1,687.03
  4. Step 4: Simplify right side
    5,384.51x = 13,625,721.50
  5. Step 5: Solve for x
    x = 13,625,721.50/5,384.51
  6. Step 6: Final answer
    x = 2,530.54

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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.