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Finding the Fourth Proportional to 5,810.16, 8,715 and 1,914.48

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Solution

The fourth proportional to 5,810.16, 8,715 and 1,914.48 is: 2,871.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,810.16 : 8,715 = 1,914.48 : x
  2. Step 2: Convert to fraction form
    5,810.16/8,715 = 1,914.48/x
  3. Step 3: Cross multiply
    5,810.16x = 8,715 × 1,914.48
  4. Step 4: Simplify right side
    5,810.16x = 16,684,693.20
  5. Step 5: Solve for x
    x = 16,684,693.20/5,810.16
  6. Step 6: Final answer
    x = 2,871.64

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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.