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Finding the Fourth Proportional to 4,628.22, 6,935.71 and 4,378.74

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Solution

The fourth proportional to 4,628.22, 6,935.71 and 4,378.74 is: 6,561.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,628.22 : 6,935.71 = 4,378.74 : x
  2. Step 2: Convert to fraction form
    4,628.22/6,935.71 = 4,378.74/x
  3. Step 3: Cross multiply
    4,628.22x = 6,935.71 × 4,378.74
  4. Step 4: Simplify right side
    4,628.22x = 30,369,670.81
  5. Step 5: Solve for x
    x = 30,369,670.81/4,628.22
  6. Step 6: Final answer
    x = 6,561.85

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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.