Home / 1,746.78-2,620.19-448.21

Finding the Fourth Proportional to 1,746.78, 2,620.19 and 448.21

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Solution

The fourth proportional to 1,746.78, 2,620.19 and 448.21 is: 672.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,746.78 : 2,620.19 = 448.21 : x
  2. Step 2: Convert to fraction form
    1,746.78/2,620.19 = 448.21/x
  3. Step 3: Cross multiply
    1,746.78x = 2,620.19 × 448.21
  4. Step 4: Simplify right side
    1,746.78x = 1,174,395.36
  5. Step 5: Solve for x
    x = 1,174,395.36/1,746.78
  6. Step 6: Final answer
    x = 672.32

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1.5x scale

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.