Home / 1,849.86-2,551.64-1,187.55

Finding the Fourth Proportional to 1,849.86, 2,551.64 and 1,187.55

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Solution

The fourth proportional to 1,849.86, 2,551.64 and 1,187.55 is: 1,638.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,849.86 : 2,551.64 = 1,187.55 : x
  2. Step 2: Convert to fraction form
    1,849.86/2,551.64 = 1,187.55/x
  3. Step 3: Cross multiply
    1,849.86x = 2,551.64 × 1,187.55
  4. Step 4: Simplify right side
    1,849.86x = 3,030,194.14
  5. Step 5: Solve for x
    x = 3,030,194.14/1,849.86
  6. Step 6: Final answer
    x = 1,638.07

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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.