Home / 1,911.40-2,862.08-1,539.24

Finding the Fourth Proportional to 1,911.40, 2,862.08 and 1,539.24

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Solution

The fourth proportional to 1,911.40, 2,862.08 and 1,539.24 is: 2,304.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,911.40 : 2,862.08 = 1,539.24 : x
  2. Step 2: Convert to fraction form
    1,911.40/2,862.08 = 1,539.24/x
  3. Step 3: Cross multiply
    1,911.40x = 2,862.08 × 1,539.24
  4. Step 4: Simplify right side
    1,911.40x = 4,405,428.02
  5. Step 5: Solve for x
    x = 4,405,428.02/1,911.40
  6. Step 6: Final answer
    x = 2,304.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.