Home / 3,717.09-5,580.59-2,158.21

Finding the Fourth Proportional to 3,717.09, 5,580.59 and 2,158.21

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Solution

The fourth proportional to 3,717.09, 5,580.59 and 2,158.21 is: 3,240.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,717.09 : 5,580.59 = 2,158.21 : x
  2. Step 2: Convert to fraction form
    3,717.09/5,580.59 = 2,158.21/x
  3. Step 3: Cross multiply
    3,717.09x = 5,580.59 × 2,158.21
  4. Step 4: Simplify right side
    3,717.09x = 12,044,085.14
  5. Step 5: Solve for x
    x = 12,044,085.14/3,717.09
  6. Step 6: Final answer
    x = 3,240.19

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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.