Home / 2,138.54-2,950.35-1,254.02

Finding the Fourth Proportional to 2,138.54, 2,950.35 and 1,254.02

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Solution

The fourth proportional to 2,138.54, 2,950.35 and 1,254.02 is: 1,730.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,138.54 : 2,950.35 = 1,254.02 : x
  2. Step 2: Convert to fraction form
    2,138.54/2,950.35 = 1,254.02/x
  3. Step 3: Cross multiply
    2,138.54x = 2,950.35 × 1,254.02
  4. Step 4: Simplify right side
    2,138.54x = 3,699,783.16
  5. Step 5: Solve for x
    x = 3,699,783.16/2,138.54
  6. Step 6: Final answer
    x = 1,730.05

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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.