Home / 2,869.64-4,298.91-2,117.82

Finding the Fourth Proportional to 2,869.64, 4,298.91 and 2,117.82

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Solution

The fourth proportional to 2,869.64, 4,298.91 and 2,117.82 is: 3,172.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,869.64 : 4,298.91 = 2,117.82 : x
  2. Step 2: Convert to fraction form
    2,869.64/4,298.91 = 2,117.82/x
  3. Step 3: Cross multiply
    2,869.64x = 4,298.91 × 2,117.82
  4. Step 4: Simplify right side
    2,869.64x = 9,104,317.58
  5. Step 5: Solve for x
    x = 9,104,317.58/2,869.64
  6. Step 6: Final answer
    x = 3,172.64

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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.