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Finding the Fourth Proportional to 2,161.02, 2,975.00 and 2,061.83

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Solution

The fourth proportional to 2,161.02, 2,975.00 and 2,061.83 is: 2,838.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,161.02 : 2,975.00 = 2,061.83 : x
  2. Step 2: Convert to fraction form
    2,161.02/2,975.00 = 2,061.83/x
  3. Step 3: Cross multiply
    2,161.02x = 2,975.00 × 2,061.83
  4. Step 4: Simplify right side
    2,161.02x = 6,133,941.38
  5. Step 5: Solve for x
    x = 6,133,941.38/2,161.02
  6. Step 6: Final answer
    x = 2,838.45

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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.