Home / 1,539.91-2,125.74-1,043.99

Finding the Fourth Proportional to 1,539.91, 2,125.74 and 1,043.99

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Solution

The fourth proportional to 1,539.91, 2,125.74 and 1,043.99 is: 1,441.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,539.91 : 2,125.74 = 1,043.99 : x
  2. Step 2: Convert to fraction form
    1,539.91/2,125.74 = 1,043.99/x
  3. Step 3: Cross multiply
    1,539.91x = 2,125.74 × 1,043.99
  4. Step 4: Simplify right side
    1,539.91x = 2,219,252.56
  5. Step 5: Solve for x
    x = 2,219,252.56/1,539.91
  6. Step 6: Final answer
    x = 1,441.16

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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.