Home / 2,303.23-3,178.45-1,255.29

Finding the Fourth Proportional to 2,303.23, 3,178.45 and 1,255.29

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Solution

The fourth proportional to 2,303.23, 3,178.45 and 1,255.29 is: 1,732.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,303.23 : 3,178.45 = 1,255.29 : x
  2. Step 2: Convert to fraction form
    2,303.23/3,178.45 = 1,255.29/x
  3. Step 3: Cross multiply
    2,303.23x = 3,178.45 × 1,255.29
  4. Step 4: Simplify right side
    2,303.23x = 3,989,876.50
  5. Step 5: Solve for x
    x = 3,989,876.50/2,303.23
  6. Step 6: Final answer
    x = 1,732.30

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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.