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Finding the Fourth Proportional to 2,935.02, 4,051.47 and 1,990.32

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Solution

The fourth proportional to 2,935.02, 4,051.47 and 1,990.32 is: 2,747.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,935.02 : 4,051.47 = 1,990.32 : x
  2. Step 2: Convert to fraction form
    2,935.02/4,051.47 = 1,990.32/x
  3. Step 3: Cross multiply
    2,935.02x = 4,051.47 × 1,990.32
  4. Step 4: Simplify right side
    2,935.02x = 8,063,721.77
  5. Step 5: Solve for x
    x = 8,063,721.77/2,935.02
  6. Step 6: Final answer
    x = 2,747.42

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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.