Home / 5,139.02-7,088.49-3,628.80

Finding the Fourth Proportional to 5,139.02, 7,088.49 and 3,628.80

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Solution

The fourth proportional to 5,139.02, 7,088.49 and 3,628.80 is: 5,005.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,139.02 : 7,088.49 = 3,628.80 : x
  2. Step 2: Convert to fraction form
    5,139.02/7,088.49 = 3,628.80/x
  3. Step 3: Cross multiply
    5,139.02x = 7,088.49 × 3,628.80
  4. Step 4: Simplify right side
    5,139.02x = 25,722,658.93
  5. Step 5: Solve for x
    x = 25,722,658.93/5,139.02
  6. Step 6: Final answer
    x = 5,005.36

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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.