Home / 2,558.13-3,530.32-1,439.06

Finding the Fourth Proportional to 2,558.13, 3,530.32 and 1,439.06

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Solution

The fourth proportional to 2,558.13, 3,530.32 and 1,439.06 is: 1,985.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,558.13 : 3,530.32 = 1,439.06 : x
  2. Step 2: Convert to fraction form
    2,558.13/3,530.32 = 1,439.06/x
  3. Step 3: Cross multiply
    2,558.13x = 3,530.32 × 1,439.06
  4. Step 4: Simplify right side
    2,558.13x = 5,080,342.30
  5. Step 5: Solve for x
    x = 5,080,342.30/2,558.13
  6. Step 6: Final answer
    x = 1,985.96

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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.