Home / 4,308.48-6,455.76-4,288.32

Finding the Fourth Proportional to 4,308.48, 6,455.76 and 4,288.32

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Solution

The fourth proportional to 4,308.48, 6,455.76 and 4,288.32 is: 6,425.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,308.48 : 6,455.76 = 4,288.32 : x
  2. Step 2: Convert to fraction form
    4,308.48/6,455.76 = 4,288.32/x
  3. Step 3: Cross multiply
    4,308.48x = 6,455.76 × 4,288.32
  4. Step 4: Simplify right side
    4,308.48x = 27,684,364.72
  5. Step 5: Solve for x
    x = 27,684,364.72/4,308.48
  6. Step 6: Final answer
    x = 6,425.55

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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.