Home / 2,486.53-3,431.85-1,424.35

Finding the Fourth Proportional to 2,486.53, 3,431.85 and 1,424.35

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Solution

The fourth proportional to 2,486.53, 3,431.85 and 1,424.35 is: 1,965.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,486.53 : 3,431.85 = 1,424.35 : x
  2. Step 2: Convert to fraction form
    2,486.53/3,431.85 = 1,424.35/x
  3. Step 3: Cross multiply
    2,486.53x = 3,431.85 × 1,424.35
  4. Step 4: Simplify right side
    2,486.53x = 4,888,155.55
  5. Step 5: Solve for x
    x = 4,888,155.55/2,486.53
  6. Step 6: Final answer
    x = 1,965.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.