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Finding the Fourth Proportional to 2,445.83, 3,375.19 and 1,326.72

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Solution

The fourth proportional to 2,445.83, 3,375.19 and 1,326.72 is: 1,830.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,445.83 : 3,375.19 = 1,326.72 : x
  2. Step 2: Convert to fraction form
    2,445.83/3,375.19 = 1,326.72/x
  3. Step 3: Cross multiply
    2,445.83x = 3,375.19 × 1,326.72
  4. Step 4: Simplify right side
    2,445.83x = 4,477,925.44
  5. Step 5: Solve for x
    x = 4,477,925.44/2,445.83
  6. Step 6: Final answer
    x = 1,830.84

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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.