Home / 5,282.48-7,289.71-2,892.40

Finding the Fourth Proportional to 5,282.48, 7,289.71 and 2,892.40

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Solution

The fourth proportional to 5,282.48, 7,289.71 and 2,892.40 is: 3,991.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,282.48 : 7,289.71 = 2,892.40 : x
  2. Step 2: Convert to fraction form
    5,282.48/7,289.71 = 2,892.40/x
  3. Step 3: Cross multiply
    5,282.48x = 7,289.71 × 2,892.40
  4. Step 4: Simplify right side
    5,282.48x = 21,084,731.75
  5. Step 5: Solve for x
    x = 21,084,731.75/5,282.48
  6. Step 6: Final answer
    x = 3,991.44

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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.