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Finding the Fourth Proportional to 1,703.88, 2,556.18 and 533.86

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Solution

The fourth proportional to 1,703.88, 2,556.18 and 533.86 is: 800.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,703.88 : 2,556.18 = 533.86 : x
  2. Step 2: Convert to fraction form
    1,703.88/2,556.18 = 533.86/x
  3. Step 3: Cross multiply
    1,703.88x = 2,556.18 × 533.86
  4. Step 4: Simplify right side
    1,703.88x = 1,364,642.25
  5. Step 5: Solve for x
    x = 1,364,642.25/1,703.88
  6. Step 6: Final answer
    x = 800.90

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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.