Home / 5,039.40-7,555.14-3,186.63

Finding the Fourth Proportional to 5,039.40, 7,555.14 and 3,186.63

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Solution

The fourth proportional to 5,039.40, 7,555.14 and 3,186.63 is: 4,777.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,039.40 : 7,555.14 = 3,186.63 : x
  2. Step 2: Convert to fraction form
    5,039.40/7,555.14 = 3,186.63/x
  3. Step 3: Cross multiply
    5,039.40x = 7,555.14 × 3,186.63
  4. Step 4: Simplify right side
    5,039.40x = 24,075,435.78
  5. Step 5: Solve for x
    x = 24,075,435.78/5,039.40
  6. Step 6: Final answer
    x = 4,777.44

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.