Home / 5,133.81-7,084.65-2,775.96

Finding the Fourth Proportional to 5,133.81, 7,084.65 and 2,775.96

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Solution

The fourth proportional to 5,133.81, 7,084.65 and 2,775.96 is: 3,830.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,133.81 : 7,084.65 = 2,775.96 : x
  2. Step 2: Convert to fraction form
    5,133.81/7,084.65 = 2,775.96/x
  3. Step 3: Cross multiply
    5,133.81x = 7,084.65 × 2,775.96
  4. Step 4: Simplify right side
    5,133.81x = 19,666,705.01
  5. Step 5: Solve for x
    x = 19,666,705.01/5,133.81
  6. Step 6: Final answer
    x = 3,830.82

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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.