Home / 2,370.36-3,270.78-1,322.40

Finding the Fourth Proportional to 2,370.36, 3,270.78 and 1,322.40

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Solution

The fourth proportional to 2,370.36, 3,270.78 and 1,322.40 is: 1,824.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,370.36 : 3,270.78 = 1,322.40 : x
  2. Step 2: Convert to fraction form
    2,370.36/3,270.78 = 1,322.40/x
  3. Step 3: Cross multiply
    2,370.36x = 3,270.78 × 1,322.40
  4. Step 4: Simplify right side
    2,370.36x = 4,325,279.47
  5. Step 5: Solve for x
    x = 4,325,279.47/2,370.36
  6. Step 6: Final answer
    x = 1,824.74

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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.