Home / 3,078.18-4,617.72-997.50

Finding the Fourth Proportional to 3,078.18, 4,617.72 and 997.50

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Solution

The fourth proportional to 3,078.18, 4,617.72 and 997.50 is: 1,496.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,078.18 : 4,617.72 = 997.50 : x
  2. Step 2: Convert to fraction form
    3,078.18/4,617.72 = 997.50/x
  3. Step 3: Cross multiply
    3,078.18x = 4,617.72 × 997.50
  4. Step 4: Simplify right side
    3,078.18x = 4,606,175.70
  5. Step 5: Solve for x
    x = 4,606,175.70/3,078.18
  6. Step 6: Final answer
    x = 1,496.40

Related Problems

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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.