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Finding the Fourth Proportional to 2,445.94, 3,375.95 and 1,913.77

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Solution

The fourth proportional to 2,445.94, 3,375.95 and 1,913.77 is: 2,641.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,445.94 : 3,375.95 = 1,913.77 : x
  2. Step 2: Convert to fraction form
    2,445.94/3,375.95 = 1,913.77/x
  3. Step 3: Cross multiply
    2,445.94x = 3,375.95 × 1,913.77
  4. Step 4: Simplify right side
    2,445.94x = 6,460,782.26
  5. Step 5: Solve for x
    x = 6,460,782.26/2,445.94
  6. Step 6: Final answer
    x = 2,641.43

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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.