Home / 7,752.38-10,698.34-4,215.61

Finding the Fourth Proportional to 7,752.38, 10,698.34 and 4,215.61

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Solution

The fourth proportional to 7,752.38, 10,698.34 and 4,215.61 is: 5,817.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,752.38 : 10,698.34 = 4,215.61 : x
  2. Step 2: Convert to fraction form
    7,752.38/10,698.34 = 4,215.61/x
  3. Step 3: Cross multiply
    7,752.38x = 10,698.34 × 4,215.61
  4. Step 4: Simplify right side
    7,752.38x = 45,099,975.60
  5. Step 5: Solve for x
    x = 45,099,975.60/7,752.38
  6. Step 6: Final answer
    x = 5,817.57

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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.