Home / 4,981.48-6,874.28-2,857.36

Finding the Fourth Proportional to 4,981.48, 6,874.28 and 2,857.36

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Solution

The fourth proportional to 4,981.48, 6,874.28 and 2,857.36 is: 3,943.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,981.48 : 6,874.28 = 2,857.36 : x
  2. Step 2: Convert to fraction form
    4,981.48/6,874.28 = 2,857.36/x
  3. Step 3: Cross multiply
    4,981.48x = 6,874.28 × 2,857.36
  4. Step 4: Simplify right side
    4,981.48x = 19,642,292.70
  5. Step 5: Solve for x
    x = 19,642,292.70/4,981.48
  6. Step 6: Final answer
    x = 3,943.06

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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.