Home / 2,690.86-4,035.72-1,579.54

Finding the Fourth Proportional to 2,690.86, 4,035.72 and 1,579.54

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Solution

The fourth proportional to 2,690.86, 4,035.72 and 1,579.54 is: 2,368.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,690.86 : 4,035.72 = 1,579.54 : x
  2. Step 2: Convert to fraction form
    2,690.86/4,035.72 = 1,579.54/x
  3. Step 3: Cross multiply
    2,690.86x = 4,035.72 × 1,579.54
  4. Step 4: Simplify right side
    2,690.86x = 6,374,581.17
  5. Step 5: Solve for x
    x = 6,374,581.17/2,690.86
  6. Step 6: Final answer
    x = 2,368.98

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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.