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Finding the Fourth Proportional to 6,454.35, 8,890.40 and 4,562.68

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Solution

The fourth proportional to 6,454.35, 8,890.40 and 4,562.68 is: 6,284.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,454.35 : 8,890.40 = 4,562.68 : x
  2. Step 2: Convert to fraction form
    6,454.35/8,890.40 = 4,562.68/x
  3. Step 3: Cross multiply
    6,454.35x = 8,890.40 × 4,562.68
  4. Step 4: Simplify right side
    6,454.35x = 40,564,039.45
  5. Step 5: Solve for x
    x = 40,564,039.45/6,454.35
  6. Step 6: Final answer
    x = 6,284.76

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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.