Home / 4,313.07-6,469.65-1,391.40

Finding the Fourth Proportional to 4,313.07, 6,469.65 and 1,391.40

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Solution

The fourth proportional to 4,313.07, 6,469.65 and 1,391.40 is: 2,087.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,313.07 : 6,469.65 = 1,391.40 : x
  2. Step 2: Convert to fraction form
    4,313.07/6,469.65 = 1,391.40/x
  3. Step 3: Cross multiply
    4,313.07x = 6,469.65 × 1,391.40
  4. Step 4: Simplify right side
    4,313.07x = 9,001,871.01
  5. Step 5: Solve for x
    x = 9,001,871.01/4,313.07
  6. Step 6: Final answer
    x = 2,087.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.