Home / 4,936.50-6,812.64-2,840.76

Finding the Fourth Proportional to 4,936.50, 6,812.64 and 2,840.76

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Solution

The fourth proportional to 4,936.50, 6,812.64 and 2,840.76 is: 3,920.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,936.50 : 6,812.64 = 2,840.76 : x
  2. Step 2: Convert to fraction form
    4,936.50/6,812.64 = 2,840.76/x
  3. Step 3: Cross multiply
    4,936.50x = 6,812.64 × 2,840.76
  4. Step 4: Simplify right side
    4,936.50x = 19,353,075.21
  5. Step 5: Solve for x
    x = 19,353,075.21/4,936.50
  6. Step 6: Final answer
    x = 3,920.40

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Half 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.