Home / 1,976.40-2,962.44-1,397.52

Finding the Fourth Proportional to 1,976.40, 2,962.44 and 1,397.52

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Solution

The fourth proportional to 1,976.40, 2,962.44 and 1,397.52 is: 2,094.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,976.40 : 2,962.44 = 1,397.52 : x
  2. Step 2: Convert to fraction form
    1,976.40/2,962.44 = 1,397.52/x
  3. Step 3: Cross multiply
    1,976.40x = 2,962.44 × 1,397.52
  4. Step 4: Simplify right side
    1,976.40x = 4,140,069.15
  5. Step 5: Solve for x
    x = 4,140,069.15/1,976.40
  6. Step 6: Final answer
    x = 2,094.75

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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.