Home / 3,125.71-4,313.59-1,709.31

Finding the Fourth Proportional to 3,125.71, 4,313.59 and 1,709.31

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Solution

The fourth proportional to 3,125.71, 4,313.59 and 1,709.31 is: 2,358.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,125.71 : 4,313.59 = 1,709.31 : x
  2. Step 2: Convert to fraction form
    3,125.71/4,313.59 = 1,709.31/x
  3. Step 3: Cross multiply
    3,125.71x = 4,313.59 × 1,709.31
  4. Step 4: Simplify right side
    3,125.71x = 7,373,259.01
  5. Step 5: Solve for x
    x = 7,373,259.01/3,125.71
  6. Step 6: Final answer
    x = 2,358.91

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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.