Home / 5,259.20-7,887.89-1,971.62

Finding the Fourth Proportional to 5,259.20, 7,887.89 and 1,971.62

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Solution

The fourth proportional to 5,259.20, 7,887.89 and 1,971.62 is: 2,957.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,259.20 : 7,887.89 = 1,971.62 : x
  2. Step 2: Convert to fraction form
    5,259.20/7,887.89 = 1,971.62/x
  3. Step 3: Cross multiply
    5,259.20x = 7,887.89 × 1,971.62
  4. Step 4: Simplify right side
    5,259.20x = 15,551,872.38
  5. Step 5: Solve for x
    x = 15,551,872.38/5,259.20
  6. Step 6: Final answer
    x = 2,957.08

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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.