Home / 5,215.88-7,828.41-2,752.37

Finding the Fourth Proportional to 5,215.88, 7,828.41 and 2,752.37

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Solution

The fourth proportional to 5,215.88, 7,828.41 and 2,752.37 is: 4,130.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,215.88 : 7,828.41 = 2,752.37 : x
  2. Step 2: Convert to fraction form
    5,215.88/7,828.41 = 2,752.37/x
  3. Step 3: Cross multiply
    5,215.88x = 7,828.41 × 2,752.37
  4. Step 4: Simplify right side
    5,215.88x = 21,546,700.40
  5. Step 5: Solve for x
    x = 21,546,700.40/5,215.88
  6. Step 6: Final answer
    x = 4,130.98

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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.