Home / 1,539.63-2,125.31-1,016.91

Finding the Fourth Proportional to 1,539.63, 2,125.31 and 1,016.91

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Solution

The fourth proportional to 1,539.63, 2,125.31 and 1,016.91 is: 1,403.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,539.63 : 2,125.31 = 1,016.91 : x
  2. Step 2: Convert to fraction form
    1,539.63/2,125.31 = 1,016.91/x
  3. Step 3: Cross multiply
    1,539.63x = 2,125.31 × 1,016.91
  4. Step 4: Simplify right side
    1,539.63x = 2,161,243.91
  5. Step 5: Solve for x
    x = 2,161,243.91/1,539.63
  6. Step 6: Final answer
    x = 1,403.74

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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.