Home / 2,303.57-3,178.93-1,255.64

Finding the Fourth Proportional to 2,303.57, 3,178.93 and 1,255.64

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Solution

The fourth proportional to 2,303.57, 3,178.93 and 1,255.64 is: 1,732.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,303.57 : 3,178.93 = 1,255.64 : x
  2. Step 2: Convert to fraction form
    2,303.57/3,178.93 = 1,255.64/x
  3. Step 3: Cross multiply
    2,303.57x = 3,178.93 × 1,255.64
  4. Step 4: Simplify right side
    2,303.57x = 3,991,591.67
  5. Step 5: Solve for x
    x = 3,991,591.67/2,303.57
  6. Step 6: Final answer
    x = 1,732.79

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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.