Home / 5,435.61-8,148.81-2,151.02

Finding the Fourth Proportional to 5,435.61, 8,148.81 and 2,151.02

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Solution

The fourth proportional to 5,435.61, 8,148.81 and 2,151.02 is: 3,224.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,435.61 : 8,148.81 = 2,151.02 : x
  2. Step 2: Convert to fraction form
    5,435.61/8,148.81 = 2,151.02/x
  3. Step 3: Cross multiply
    5,435.61x = 8,148.81 × 2,151.02
  4. Step 4: Simplify right side
    5,435.61x = 17,528,253.29
  5. Step 5: Solve for x
    x = 17,528,253.29/5,435.61
  6. Step 6: Final answer
    x = 3,224.71

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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.