Home / 2,303.50-3,178.91-1,255.63

Finding the Fourth Proportional to 2,303.50, 3,178.91 and 1,255.63

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Solution

The fourth proportional to 2,303.50, 3,178.91 and 1,255.63 is: 1,732.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,303.50 : 3,178.91 = 1,255.63 : x
  2. Step 2: Convert to fraction form
    2,303.50/3,178.91 = 1,255.63/x
  3. Step 3: Cross multiply
    2,303.50x = 3,178.91 × 1,255.63
  4. Step 4: Simplify right side
    2,303.50x = 3,991,534.76
  5. Step 5: Solve for x
    x = 3,991,534.76/2,303.50
  6. Step 6: Final answer
    x = 1,732.81

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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.