Home / 2,690.46-4,036.86-1,458.74

Finding the Fourth Proportional to 2,690.46, 4,036.86 and 1,458.74

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Solution

The fourth proportional to 2,690.46, 4,036.86 and 1,458.74 is: 2,188.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,690.46 : 4,036.86 = 1,458.74 : x
  2. Step 2: Convert to fraction form
    2,690.46/4,036.86 = 1,458.74/x
  3. Step 3: Cross multiply
    2,690.46x = 4,036.86 × 1,458.74
  4. Step 4: Simplify right side
    2,690.46x = 5,888,739.25
  5. Step 5: Solve for x
    x = 5,888,739.25/2,690.46
  6. Step 6: Final answer
    x = 2,188.75

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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.