Home / 1,540.16-2,125.38-1,416.32

Finding the Fourth Proportional to 1,540.16, 2,125.38 and 1,416.32

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Solution

The fourth proportional to 1,540.16, 2,125.38 and 1,416.32 is: 1,954.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,540.16 : 2,125.38 = 1,416.32 : x
  2. Step 2: Convert to fraction form
    1,540.16/2,125.38 = 1,416.32/x
  3. Step 3: Cross multiply
    1,540.16x = 2,125.38 × 1,416.32
  4. Step 4: Simplify right side
    1,540.16x = 3,010,218.20
  5. Step 5: Solve for x
    x = 3,010,218.20/1,540.16
  6. Step 6: Final answer
    x = 1,954.48

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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.