Home / 6,448.74-8,898.61-3,615.87

Finding the Fourth Proportional to 6,448.74, 8,898.61 and 3,615.87

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Solution

The fourth proportional to 6,448.74, 8,898.61 and 3,615.87 is: 4,989.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,448.74 : 8,898.61 = 3,615.87 : x
  2. Step 2: Convert to fraction form
    6,448.74/8,898.61 = 3,615.87/x
  3. Step 3: Cross multiply
    6,448.74x = 8,898.61 × 3,615.87
  4. Step 4: Simplify right side
    6,448.74x = 32,176,216.94
  5. Step 5: Solve for x
    x = 32,176,216.94/6,448.74
  6. Step 6: Final answer
    x = 4,989.54

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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.