Home / 1,905.86-2,637.26-1,625.64

Finding the Fourth Proportional to 1,905.86, 2,637.26 and 1,625.64

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Solution

The fourth proportional to 1,905.86, 2,637.26 and 1,625.64 is: 2,249.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,905.86 : 2,637.26 = 1,625.64 : x
  2. Step 2: Convert to fraction form
    1,905.86/2,637.26 = 1,625.64/x
  3. Step 3: Cross multiply
    1,905.86x = 2,637.26 × 1,625.64
  4. Step 4: Simplify right side
    1,905.86x = 4,287,235.35
  5. Step 5: Solve for x
    x = 4,287,235.35/1,905.86
  6. Step 6: Final answer
    x = 2,249.50

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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.