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Finding the Fourth Proportional to 5,641.76, 8,460.84 and 1,943.10

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Solution

The fourth proportional to 5,641.76, 8,460.84 and 1,943.10 is: 2,914.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,641.76 : 8,460.84 = 1,943.10 : x
  2. Step 2: Convert to fraction form
    5,641.76/8,460.84 = 1,943.10/x
  3. Step 3: Cross multiply
    5,641.76x = 8,460.84 × 1,943.10
  4. Step 4: Simplify right side
    5,641.76x = 16,440,258.20
  5. Step 5: Solve for x
    x = 16,440,258.20/5,641.76
  6. Step 6: Final answer
    x = 2,914.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.