Home / 3,162.09-4,364.88-2,378.40

Finding the Fourth Proportional to 3,162.09, 4,364.88 and 2,378.40

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Solution

The fourth proportional to 3,162.09, 4,364.88 and 2,378.40 is: 3,283.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,162.09 : 4,364.88 = 2,378.40 : x
  2. Step 2: Convert to fraction form
    3,162.09/4,364.88 = 2,378.40/x
  3. Step 3: Cross multiply
    3,162.09x = 4,364.88 × 2,378.40
  4. Step 4: Simplify right side
    3,162.09x = 10,381,430.59
  5. Step 5: Solve for x
    x = 10,381,430.59/3,162.09
  6. Step 6: Final answer
    x = 3,283.09

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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.