Home / 3,061.02-4,222.62-2,117.70

Finding the Fourth Proportional to 3,061.02, 4,222.62 and 2,117.70

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Solution

The fourth proportional to 3,061.02, 4,222.62 and 2,117.70 is: 2,921.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,061.02 : 4,222.62 = 2,117.70 : x
  2. Step 2: Convert to fraction form
    3,061.02/4,222.62 = 2,117.70/x
  3. Step 3: Cross multiply
    3,061.02x = 4,222.62 × 2,117.70
  4. Step 4: Simplify right side
    3,061.02x = 8,942,242.37
  5. Step 5: Solve for x
    x = 8,942,242.37/3,061.02
  6. Step 6: Final answer
    x = 2,921.33

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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.