Home / 5,417.46-8,127.09-1,718.64

Finding the Fourth Proportional to 5,417.46, 8,127.09 and 1,718.64

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Solution

The fourth proportional to 5,417.46, 8,127.09 and 1,718.64 is: 2,578.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,417.46 : 8,127.09 = 1,718.64 : x
  2. Step 2: Convert to fraction form
    5,417.46/8,127.09 = 1,718.64/x
  3. Step 3: Cross multiply
    5,417.46x = 8,127.09 × 1,718.64
  4. Step 4: Simplify right side
    5,417.46x = 13,967,541.96
  5. Step 5: Solve for x
    x = 13,967,541.96/5,417.46
  6. Step 6: Final answer
    x = 2,578.25

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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.