Home / 1,980.60-2,733-1,096.40

Finding the Fourth Proportional to 1,980.60, 2,733 and 1,096.40

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Solution

The fourth proportional to 1,980.60, 2,733 and 1,096.40 is: 1,512.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,980.60 : 2,733 = 1,096.40 : x
  2. Step 2: Convert to fraction form
    1,980.60/2,733 = 1,096.40/x
  3. Step 3: Cross multiply
    1,980.60x = 2,733 × 1,096.40
  4. Step 4: Simplify right side
    1,980.60x = 2,996,461.20
  5. Step 5: Solve for x
    x = 2,996,461.20/1,980.60
  6. Step 6: Final answer
    x = 1,512.91

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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.