Home / 5,005.32-7,509.60-1,718.34

Finding the Fourth Proportional to 5,005.32, 7,509.60 and 1,718.34

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Solution

The fourth proportional to 5,005.32, 7,509.60 and 1,718.34 is: 2,578.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,005.32 : 7,509.60 = 1,718.34 : x
  2. Step 2: Convert to fraction form
    5,005.32/7,509.60 = 1,718.34/x
  3. Step 3: Cross multiply
    5,005.32x = 7,509.60 × 1,718.34
  4. Step 4: Simplify right side
    5,005.32x = 12,904,046.06
  5. Step 5: Solve for x
    x = 12,904,046.06/5,005.32
  6. Step 6: Final answer
    x = 2,578.07

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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.