Home / 6,465.31-8,918.98-4,227.28

Finding the Fourth Proportional to 6,465.31, 8,918.98 and 4,227.28

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Solution

The fourth proportional to 6,465.31, 8,918.98 and 4,227.28 is: 5,831.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,465.31 : 8,918.98 = 4,227.28 : x
  2. Step 2: Convert to fraction form
    6,465.31/8,918.98 = 4,227.28/x
  3. Step 3: Cross multiply
    6,465.31x = 8,918.98 × 4,227.28
  4. Step 4: Simplify right side
    6,465.31x = 37,702,992.91
  5. Step 5: Solve for x
    x = 37,702,992.91/6,465.31
  6. Step 6: Final answer
    x = 5,831.59

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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.