Home / 1,980.48-2,968.20-1,492.14

Finding the Fourth Proportional to 1,980.48, 2,968.20 and 1,492.14

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Solution

The fourth proportional to 1,980.48, 2,968.20 and 1,492.14 is: 2,236.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,980.48 : 2,968.20 = 1,492.14 : x
  2. Step 2: Convert to fraction form
    1,980.48/2,968.20 = 1,492.14/x
  3. Step 3: Cross multiply
    1,980.48x = 2,968.20 × 1,492.14
  4. Step 4: Simplify right side
    1,980.48x = 4,428,969.95
  5. Step 5: Solve for x
    x = 4,428,969.95/1,980.48
  6. Step 6: Final answer
    x = 2,236.31

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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.