Home / 1,780.56-2,449.36-1,448.26

Finding the Fourth Proportional to 1,780.56, 2,449.36 and 1,448.26

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Solution

The fourth proportional to 1,780.56, 2,449.36 and 1,448.26 is: 1,992.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,780.56 : 2,449.36 = 1,448.26 : x
  2. Step 2: Convert to fraction form
    1,780.56/2,449.36 = 1,448.26/x
  3. Step 3: Cross multiply
    1,780.56x = 2,449.36 × 1,448.26
  4. Step 4: Simplify right side
    1,780.56x = 3,547,310.11
  5. Step 5: Solve for x
    x = 3,547,310.11/1,780.56
  6. Step 6: Final answer
    x = 1,992.24

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1.5x scale

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.