Home / 2,558.09-3,530.34-1,439.13

Finding the Fourth Proportional to 2,558.09, 3,530.34 and 1,439.13

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Solution

The fourth proportional to 2,558.09, 3,530.34 and 1,439.13 is: 1,986.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,558.09 : 3,530.34 = 1,439.13 : x
  2. Step 2: Convert to fraction form
    2,558.09/3,530.34 = 1,439.13/x
  3. Step 3: Cross multiply
    2,558.09x = 3,530.34 × 1,439.13
  4. Step 4: Simplify right side
    2,558.09x = 5,080,611.01
  5. Step 5: Solve for x
    x = 5,080,611.01/2,558.09
  6. Step 6: Final answer
    x = 1,986.10

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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.