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Finding the Fourth Proportional to 2,637.63, 3,953.66 and 993.47

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Solution

The fourth proportional to 2,637.63, 3,953.66 and 993.47 is: 1,489.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,637.63 : 3,953.66 = 993.47 : x
  2. Step 2: Convert to fraction form
    2,637.63/3,953.66 = 993.47/x
  3. Step 3: Cross multiply
    2,637.63x = 3,953.66 × 993.47
  4. Step 4: Simplify right side
    2,637.63x = 3,927,817.86
  5. Step 5: Solve for x
    x = 3,927,817.86/2,637.63
  6. Step 6: Final answer
    x = 1,489.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.