Home / 1,586.72-2,190.36-1,193.84

Finding the Fourth Proportional to 1,586.72, 2,190.36 and 1,193.84

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Solution

The fourth proportional to 1,586.72, 2,190.36 and 1,193.84 is: 1,648.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,586.72 : 2,190.36 = 1,193.84 : x
  2. Step 2: Convert to fraction form
    1,586.72/2,190.36 = 1,193.84/x
  3. Step 3: Cross multiply
    1,586.72x = 2,190.36 × 1,193.84
  4. Step 4: Simplify right side
    1,586.72x = 2,614,939.38
  5. Step 5: Solve for x
    x = 2,614,939.38/1,586.72
  6. Step 6: Final answer
    x = 1,648.02

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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.