Home / 5,278.32-7,283.99-2,920.46

Finding the Fourth Proportional to 5,278.32, 7,283.99 and 2,920.46

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Solution

The fourth proportional to 5,278.32, 7,283.99 and 2,920.46 is: 4,030.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,278.32 : 7,283.99 = 2,920.46 : x
  2. Step 2: Convert to fraction form
    5,278.32/7,283.99 = 2,920.46/x
  3. Step 3: Cross multiply
    5,278.32x = 7,283.99 × 2,920.46
  4. Step 4: Simplify right side
    5,278.32x = 21,272,550.41
  5. Step 5: Solve for x
    x = 21,272,550.41/5,278.32
  6. Step 6: Final answer
    x = 4,030.17

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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.