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Finding the Fourth Proportional to 4,641.69, 6,405.88 and 2,652.21

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Solution

The fourth proportional to 4,641.69, 6,405.88 and 2,652.21 is: 3,660.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,641.69 : 6,405.88 = 2,652.21 : x
  2. Step 2: Convert to fraction form
    4,641.69/6,405.88 = 2,652.21/x
  3. Step 3: Cross multiply
    4,641.69x = 6,405.88 × 2,652.21
  4. Step 4: Simplify right side
    4,641.69x = 16,989,693.70
  5. Step 5: Solve for x
    x = 16,989,693.70/4,641.69
  6. Step 6: Final answer
    x = 3,660.24

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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.