Home / 3,125.57-4,313.23-1,728.32

Finding the Fourth Proportional to 3,125.57, 4,313.23 and 1,728.32

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Solution

The fourth proportional to 3,125.57, 4,313.23 and 1,728.32 is: 2,385.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,125.57 : 4,313.23 = 1,728.32 : x
  2. Step 2: Convert to fraction form
    3,125.57/4,313.23 = 1,728.32/x
  3. Step 3: Cross multiply
    3,125.57x = 4,313.23 × 1,728.32
  4. Step 4: Simplify right side
    3,125.57x = 7,454,615.79
  5. Step 5: Solve for x
    x = 7,454,615.79/3,125.57
  6. Step 6: Final answer
    x = 2,385.05

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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.