Home / 5,278.10-7,283.99-2,920.07

Finding the Fourth Proportional to 5,278.10, 7,283.99 and 2,920.07

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Solution

The fourth proportional to 5,278.10, 7,283.99 and 2,920.07 is: 4,029.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,278.10 : 7,283.99 = 2,920.07 : x
  2. Step 2: Convert to fraction form
    5,278.10/7,283.99 = 2,920.07/x
  3. Step 3: Cross multiply
    5,278.10x = 7,283.99 × 2,920.07
  4. Step 4: Simplify right side
    5,278.10x = 21,269,786.19
  5. Step 5: Solve for x
    x = 21,269,786.19/5,278.10
  6. Step 6: Final answer
    x = 4,029.82

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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.