Home / 5,435.21-8,153.87-2,315.16

Finding the Fourth Proportional to 5,435.21, 8,153.87 and 2,315.16

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Solution

The fourth proportional to 5,435.21, 8,153.87 and 2,315.16 is: 3,473.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,435.21 : 8,153.87 = 2,315.16 : x
  2. Step 2: Convert to fraction form
    5,435.21/8,153.87 = 2,315.16/x
  3. Step 3: Cross multiply
    5,435.21x = 8,153.87 × 2,315.16
  4. Step 4: Simplify right side
    5,435.21x = 18,877,502.09
  5. Step 5: Solve for x
    x = 18,877,502.09/5,435.21
  6. Step 6: Final answer
    x = 3,473.19

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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.