Home / 2,909.40-4,360.60-1,347.28

Finding the Fourth Proportional to 2,909.40, 4,360.60 and 1,347.28

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Solution

The fourth proportional to 2,909.40, 4,360.60 and 1,347.28 is: 2,019.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,909.40 : 4,360.60 = 1,347.28 : x
  2. Step 2: Convert to fraction form
    2,909.40/4,360.60 = 1,347.28/x
  3. Step 3: Cross multiply
    2,909.40x = 4,360.60 × 1,347.28
  4. Step 4: Simplify right side
    2,909.40x = 5,874,949.17
  5. Step 5: Solve for x
    x = 5,874,949.17/2,909.40
  6. Step 6: Final answer
    x = 2,019.30

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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.