Home / 3,125.09-4,312.45-1,727.75

Finding the Fourth Proportional to 3,125.09, 4,312.45 and 1,727.75

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Solution

The fourth proportional to 3,125.09, 4,312.45 and 1,727.75 is: 2,384.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,125.09 : 4,312.45 = 1,727.75 : x
  2. Step 2: Convert to fraction form
    3,125.09/4,312.45 = 1,727.75/x
  3. Step 3: Cross multiply
    3,125.09x = 4,312.45 × 1,727.75
  4. Step 4: Simplify right side
    3,125.09x = 7,450,835.49
  5. Step 5: Solve for x
    x = 7,450,835.49/3,125.09
  6. Step 6: Final answer
    x = 2,384.20

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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.