Home / 5,160.88-7,122.01-2,803.07

Finding the Fourth Proportional to 5,160.88, 7,122.01 and 2,803.07

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Solution

The fourth proportional to 5,160.88, 7,122.01 and 2,803.07 is: 3,868.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,160.88 : 7,122.01 = 2,803.07 : x
  2. Step 2: Convert to fraction form
    5,160.88/7,122.01 = 2,803.07/x
  3. Step 3: Cross multiply
    5,160.88x = 7,122.01 × 2,803.07
  4. Step 4: Simplify right side
    5,160.88x = 19,963,456.96
  5. Step 5: Solve for x
    x = 19,963,456.96/5,160.88
  6. Step 6: Final answer
    x = 3,868.23

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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.