Home / 4,390.15-6,587.82-1,618.77

Finding the Fourth Proportional to 4,390.15, 6,587.82 and 1,618.77

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Solution

The fourth proportional to 4,390.15, 6,587.82 and 1,618.77 is: 2,429.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,390.15 : 6,587.82 = 1,618.77 : x
  2. Step 2: Convert to fraction form
    4,390.15/6,587.82 = 1,618.77/x
  3. Step 3: Cross multiply
    4,390.15x = 6,587.82 × 1,618.77
  4. Step 4: Simplify right side
    4,390.15x = 10,664,165.38
  5. Step 5: Solve for x
    x = 10,664,165.38/4,390.15
  6. Step 6: Final answer
    x = 2,429.11

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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.