Home / 4,312.84-6,469.26-1,391.15

Finding the Fourth Proportional to 4,312.84, 6,469.26 and 1,391.15

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Solution

The fourth proportional to 4,312.84, 6,469.26 and 1,391.15 is: 2,086.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,312.84 : 6,469.26 = 1,391.15 : x
  2. Step 2: Convert to fraction form
    4,312.84/6,469.26 = 1,391.15/x
  3. Step 3: Cross multiply
    4,312.84x = 6,469.26 × 1,391.15
  4. Step 4: Simplify right side
    4,312.84x = 8,999,697.01
  5. Step 5: Solve for x
    x = 8,999,697.01/4,312.84
  6. Step 6: Final answer
    x = 2,086.72

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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.