Home / 5,210.23-7,813.71-1,512.72

Finding the Fourth Proportional to 5,210.23, 7,813.71 and 1,512.72

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Solution

The fourth proportional to 5,210.23, 7,813.71 and 1,512.72 is: 2,268.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,210.23 : 7,813.71 = 1,512.72 : x
  2. Step 2: Convert to fraction form
    5,210.23/7,813.71 = 1,512.72/x
  3. Step 3: Cross multiply
    5,210.23x = 7,813.71 × 1,512.72
  4. Step 4: Simplify right side
    5,210.23x = 11,819,920.10
  5. Step 5: Solve for x
    x = 11,819,920.10/5,210.23
  6. Step 6: Final answer
    x = 2,268.60

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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.