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Finding the Fourth Proportional to 4,628.81, 6,387.86 and 4,275.65

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Solution

The fourth proportional to 4,628.81, 6,387.86 and 4,275.65 is: 5,900.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,628.81 : 6,387.86 = 4,275.65 : x
  2. Step 2: Convert to fraction form
    4,628.81/6,387.86 = 4,275.65/x
  3. Step 3: Cross multiply
    4,628.81x = 6,387.86 × 4,275.65
  4. Step 4: Simplify right side
    4,628.81x = 27,312,280.27
  5. Step 5: Solve for x
    x = 27,312,280.27/4,628.81
  6. Step 6: Final answer
    x = 5,900.49

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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.