Home / 5,191.38-7,164.30-2,953.46

Finding the Fourth Proportional to 5,191.38, 7,164.30 and 2,953.46

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Solution

The fourth proportional to 5,191.38, 7,164.30 and 2,953.46 is: 4,075.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,191.38 : 7,164.30 = 2,953.46 : x
  2. Step 2: Convert to fraction form
    5,191.38/7,164.30 = 2,953.46/x
  3. Step 3: Cross multiply
    5,191.38x = 7,164.30 × 2,953.46
  4. Step 4: Simplify right side
    5,191.38x = 21,159,437.66
  5. Step 5: Solve for x
    x = 21,159,437.66/5,191.38
  6. Step 6: Final answer
    x = 4,075.88

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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.