Home / 7,428.46-11,142.13-2,746.28

Finding the Fourth Proportional to 7,428.46, 11,142.13 and 2,746.28

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Solution

The fourth proportional to 7,428.46, 11,142.13 and 2,746.28 is: 4,119.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,428.46 : 11,142.13 = 2,746.28 : x
  2. Step 2: Convert to fraction form
    7,428.46/11,142.13 = 2,746.28/x
  3. Step 3: Cross multiply
    7,428.46x = 11,142.13 × 2,746.28
  4. Step 4: Simplify right side
    7,428.46x = 30,599,442.64
  5. Step 5: Solve for x
    x = 30,599,442.64/7,428.46
  6. Step 6: Final answer
    x = 4,119.22

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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.