Home / 5,285.71-7,294.26-2,927.80

Finding the Fourth Proportional to 5,285.71, 7,294.26 and 2,927.80

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Solution

The fourth proportional to 5,285.71, 7,294.26 and 2,927.80 is: 4,040.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,285.71 : 7,294.26 = 2,927.80 : x
  2. Step 2: Convert to fraction form
    5,285.71/7,294.26 = 2,927.80/x
  3. Step 3: Cross multiply
    5,285.71x = 7,294.26 × 2,927.80
  4. Step 4: Simplify right side
    5,285.71x = 21,356,134.43
  5. Step 5: Solve for x
    x = 21,356,134.43/5,285.71
  6. Step 6: Final answer
    x = 4,040.35

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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.