Home / 1,540.61-2,125.36-1,043.07

Finding the Fourth Proportional to 1,540.61, 2,125.36 and 1,043.07

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Solution

The fourth proportional to 1,540.61, 2,125.36 and 1,043.07 is: 1,438.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,540.61 : 2,125.36 = 1,043.07 : x
  2. Step 2: Convert to fraction form
    1,540.61/2,125.36 = 1,043.07/x
  3. Step 3: Cross multiply
    1,540.61x = 2,125.36 × 1,043.07
  4. Step 4: Simplify right side
    1,540.61x = 2,216,896.65
  5. Step 5: Solve for x
    x = 2,216,896.65/1,540.61
  6. Step 6: Final answer
    x = 1,438.98

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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.