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Finding the Fourth Proportional to 1,733.55, 2,392.30 and 987.33

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Solution

The fourth proportional to 1,733.55, 2,392.30 and 987.33 is: 1,362.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,733.55 : 2,392.30 = 987.33 : x
  2. Step 2: Convert to fraction form
    1,733.55/2,392.30 = 987.33/x
  3. Step 3: Cross multiply
    1,733.55x = 2,392.30 × 987.33
  4. Step 4: Simplify right side
    1,733.55x = 2,361,989.56
  5. Step 5: Solve for x
    x = 2,361,989.56/1,733.55
  6. Step 6: Final answer
    x = 1,362.52

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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.