Home / 3,118.21-4,677.57-926.94

Finding the Fourth Proportional to 3,118.21, 4,677.57 and 926.94

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Solution

The fourth proportional to 3,118.21, 4,677.57 and 926.94 is: 1,390.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118.21 : 4,677.57 = 926.94 : x
  2. Step 2: Convert to fraction form
    3,118.21/4,677.57 = 926.94/x
  3. Step 3: Cross multiply
    3,118.21x = 4,677.57 × 926.94
  4. Step 4: Simplify right side
    3,118.21x = 4,335,822.10
  5. Step 5: Solve for x
    x = 4,335,822.10/3,118.21
  6. Step 6: Final answer
    x = 1,390.49

Related Problems

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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.