Home / 2,391.09-3,586.98-1,157.49

Finding the Fourth Proportional to 2,391.09, 3,586.98 and 1,157.49

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Solution

The fourth proportional to 2,391.09, 3,586.98 and 1,157.49 is: 1,736.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,391.09 : 3,586.98 = 1,157.49 : x
  2. Step 2: Convert to fraction form
    2,391.09/3,586.98 = 1,157.49/x
  3. Step 3: Cross multiply
    2,391.09x = 3,586.98 × 1,157.49
  4. Step 4: Simplify right side
    2,391.09x = 4,151,869.76
  5. Step 5: Solve for x
    x = 4,151,869.76/2,391.09
  6. Step 6: Final answer
    x = 1,736.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.