Home / 5,154.84-7,113.48-3,165.12

Finding the Fourth Proportional to 5,154.84, 7,113.48 and 3,165.12

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Solution

The fourth proportional to 5,154.84, 7,113.48 and 3,165.12 is: 4,367.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,154.84 : 7,113.48 = 3,165.12 : x
  2. Step 2: Convert to fraction form
    5,154.84/7,113.48 = 3,165.12/x
  3. Step 3: Cross multiply
    5,154.84x = 7,113.48 × 3,165.12
  4. Step 4: Simplify right side
    5,154.84x = 22,515,017.82
  5. Step 5: Solve for x
    x = 22,515,017.82/5,154.84
  6. Step 6: Final answer
    x = 4,367.74

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