Home / 3,718.58-5,130.78-2,225.93

Finding the Fourth Proportional to 3,718.58, 5,130.78 and 2,225.93

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Solution

The fourth proportional to 3,718.58, 5,130.78 and 2,225.93 is: 3,071.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,718.58 : 5,130.78 = 2,225.93 : x
  2. Step 2: Convert to fraction form
    3,718.58/5,130.78 = 2,225.93/x
  3. Step 3: Cross multiply
    3,718.58x = 5,130.78 × 2,225.93
  4. Step 4: Simplify right side
    3,718.58x = 11,420,757.13
  5. Step 5: Solve for x
    x = 11,420,757.13/3,718.58
  6. Step 6: Final answer
    x = 3,071.27

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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.