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Finding the Fourth Proportional to 1,593.91, 2,400.23 and 1,390.90

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Solution

The fourth proportional to 1,593.91, 2,400.23 and 1,390.90 is: 2,094.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,593.91 : 2,400.23 = 1,390.90 : x
  2. Step 2: Convert to fraction form
    1,593.91/2,400.23 = 1,390.90/x
  3. Step 3: Cross multiply
    1,593.91x = 2,400.23 × 1,390.90
  4. Step 4: Simplify right side
    1,593.91x = 3,338,479.91
  5. Step 5: Solve for x
    x = 3,338,479.91/1,593.91
  6. Step 6: Final answer
    x = 2,094.52

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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.