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Finding the Fourth Proportional to 3,256.78, 4,494.30 and 1,859.50

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Solution

The fourth proportional to 3,256.78, 4,494.30 and 1,859.50 is: 2,566.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,256.78 : 4,494.30 = 1,859.50 : x
  2. Step 2: Convert to fraction form
    3,256.78/4,494.30 = 1,859.50/x
  3. Step 3: Cross multiply
    3,256.78x = 4,494.30 × 1,859.50
  4. Step 4: Simplify right side
    3,256.78x = 8,357,150.85
  5. Step 5: Solve for x
    x = 8,357,150.85/3,256.78
  6. Step 6: Final answer
    x = 2,566.08

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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.