Home / 1,627.10-2,245.38-928.46

Finding the Fourth Proportional to 1,627.10, 2,245.38 and 928.46

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Solution

The fourth proportional to 1,627.10, 2,245.38 and 928.46 is: 1,281.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,627.10 : 2,245.38 = 928.46 : x
  2. Step 2: Convert to fraction form
    1,627.10/2,245.38 = 928.46/x
  3. Step 3: Cross multiply
    1,627.10x = 2,245.38 × 928.46
  4. Step 4: Simplify right side
    1,627.10x = 2,084,745.51
  5. Step 5: Solve for x
    x = 2,084,745.51/1,627.10
  6. Step 6: Final answer
    x = 1,281.26

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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.