Home / 5,215.08-7,823.37-1,927.32

Finding the Fourth Proportional to 5,215.08, 7,823.37 and 1,927.32

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Solution

The fourth proportional to 5,215.08, 7,823.37 and 1,927.32 is: 2,891.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,215.08 : 7,823.37 = 1,927.32 : x
  2. Step 2: Convert to fraction form
    5,215.08/7,823.37 = 1,927.32/x
  3. Step 3: Cross multiply
    5,215.08x = 7,823.37 × 1,927.32
  4. Step 4: Simplify right side
    5,215.08x = 15,078,137.47
  5. Step 5: Solve for x
    x = 15,078,137.47/5,215.08
  6. Step 6: Final answer
    x = 2,891.26

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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.