Home / 1,885.94-2,601.85-1,089.11

Finding the Fourth Proportional to 1,885.94, 2,601.85 and 1,089.11

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Solution

The fourth proportional to 1,885.94, 2,601.85 and 1,089.11 is: 1,502.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,885.94 : 2,601.85 = 1,089.11 : x
  2. Step 2: Convert to fraction form
    1,885.94/2,601.85 = 1,089.11/x
  3. Step 3: Cross multiply
    1,885.94x = 2,601.85 × 1,089.11
  4. Step 4: Simplify right side
    1,885.94x = 2,833,703.31
  5. Step 5: Solve for x
    x = 2,833,703.31/1,885.94
  6. Step 6: Final answer
    x = 1,502.54

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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.