Home / 1,593.41-2,399.47-1,390.40

Finding the Fourth Proportional to 1,593.41, 2,399.47 and 1,390.40

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Solution

The fourth proportional to 1,593.41, 2,399.47 and 1,390.40 is: 2,093.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,593.41 : 2,399.47 = 1,390.40 : x
  2. Step 2: Convert to fraction form
    1,593.41/2,399.47 = 1,390.40/x
  3. Step 3: Cross multiply
    1,593.41x = 2,399.47 × 1,390.40
  4. Step 4: Simplify right side
    1,593.41x = 3,336,223.09
  5. Step 5: Solve for x
    x = 3,336,223.09/1,593.41
  6. Step 6: Final answer
    x = 2,093.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.