Home / 1,980.16-2,967.68-1,748.16

Finding the Fourth Proportional to 1,980.16, 2,967.68 and 1,748.16

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Solution

The fourth proportional to 1,980.16, 2,967.68 and 1,748.16 is: 2,619.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,980.16 : 2,967.68 = 1,748.16 : x
  2. Step 2: Convert to fraction form
    1,980.16/2,967.68 = 1,748.16/x
  3. Step 3: Cross multiply
    1,980.16x = 2,967.68 × 1,748.16
  4. Step 4: Simplify right side
    1,980.16x = 5,187,979.47
  5. Step 5: Solve for x
    x = 5,187,979.47/1,980.16
  6. Step 6: Final answer
    x = 2,619.98

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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.