Home / 4,255.36-6,345.80-4,216.48

Finding the Fourth Proportional to 4,255.36, 6,345.80 and 4,216.48

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Solution

The fourth proportional to 4,255.36, 6,345.80 and 4,216.48 is: 6,287.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,255.36 : 6,345.80 = 4,216.48 : x
  2. Step 2: Convert to fraction form
    4,255.36/6,345.80 = 4,216.48/x
  3. Step 3: Cross multiply
    4,255.36x = 6,345.80 × 4,216.48
  4. Step 4: Simplify right side
    4,255.36x = 26,756,938.78
  5. Step 5: Solve for x
    x = 26,756,938.78/4,255.36
  6. Step 6: Final answer
    x = 6,287.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.