Home / 2,392.40-3,301.04-1,397.68

Finding the Fourth Proportional to 2,392.40, 3,301.04 and 1,397.68

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Solution

The fourth proportional to 2,392.40, 3,301.04 and 1,397.68 is: 1,928.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,392.40 : 3,301.04 = 1,397.68 : x
  2. Step 2: Convert to fraction form
    2,392.40/3,301.04 = 1,397.68/x
  3. Step 3: Cross multiply
    2,392.40x = 3,301.04 × 1,397.68
  4. Step 4: Simplify right side
    2,392.40x = 4,613,797.59
  5. Step 5: Solve for x
    x = 4,613,797.59/2,392.40
  6. Step 6: Final answer
    x = 1,928.52

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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.