Home / 1,936.47-2,670.93-1,872.21

Finding the Fourth Proportional to 1,936.47, 2,670.93 and 1,872.21

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Solution

The fourth proportional to 1,936.47, 2,670.93 and 1,872.21 is: 2,582.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,936.47 : 2,670.93 = 1,872.21 : x
  2. Step 2: Convert to fraction form
    1,936.47/2,670.93 = 1,872.21/x
  3. Step 3: Cross multiply
    1,936.47x = 2,670.93 × 1,872.21
  4. Step 4: Simplify right side
    1,936.47x = 5,000,541.86
  5. Step 5: Solve for x
    x = 5,000,541.86/1,936.47
  6. Step 6: Final answer
    x = 2,582.30

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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.