Home / 5,718.18-8,578.89-2,946.87

Finding the Fourth Proportional to 5,718.18, 8,578.89 and 2,946.87

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Solution

The fourth proportional to 5,718.18, 8,578.89 and 2,946.87 is: 4,421.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,718.18 : 8,578.89 = 2,946.87 : x
  2. Step 2: Convert to fraction form
    5,718.18/8,578.89 = 2,946.87/x
  3. Step 3: Cross multiply
    5,718.18x = 8,578.89 × 2,946.87
  4. Step 4: Simplify right side
    5,718.18x = 25,280,873.57
  5. Step 5: Solve for x
    x = 25,280,873.57/5,718.18
  6. Step 6: Final answer
    x = 4,421.14

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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.