Home / 4,313.70-6,472.35-1,392.78

Finding the Fourth Proportional to 4,313.70, 6,472.35 and 1,392.78

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Solution

The fourth proportional to 4,313.70, 6,472.35 and 1,392.78 is: 2,089.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,313.70 : 6,472.35 = 1,392.78 : x
  2. Step 2: Convert to fraction form
    4,313.70/6,472.35 = 1,392.78/x
  3. Step 3: Cross multiply
    4,313.70x = 6,472.35 × 1,392.78
  4. Step 4: Simplify right side
    4,313.70x = 9,014,559.63
  5. Step 5: Solve for x
    x = 9,014,559.63/4,313.70
  6. Step 6: Final answer
    x = 2,089.75

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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.