Home / 4,215.24-6,285.60-4,178.39

Finding the Fourth Proportional to 4,215.24, 6,285.60 and 4,178.39

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Solution

The fourth proportional to 4,215.24, 6,285.60 and 4,178.39 is: 6,230.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,215.24 : 6,285.60 = 4,178.39 : x
  2. Step 2: Convert to fraction form
    4,215.24/6,285.60 = 4,178.39/x
  3. Step 3: Cross multiply
    4,215.24x = 6,285.60 × 4,178.39
  4. Step 4: Simplify right side
    4,215.24x = 26,263,656.76
  5. Step 5: Solve for x
    x = 26,263,656.76/4,215.24
  6. Step 6: Final answer
    x = 6,230.64

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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.