Home / 2,328.21-3,213.77-1,542.51

Finding the Fourth Proportional to 2,328.21, 3,213.77 and 1,542.51

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Solution

The fourth proportional to 2,328.21, 3,213.77 and 1,542.51 is: 2,129.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,328.21 : 3,213.77 = 1,542.51 : x
  2. Step 2: Convert to fraction form
    2,328.21/3,213.77 = 1,542.51/x
  3. Step 3: Cross multiply
    2,328.21x = 3,213.77 × 1,542.51
  4. Step 4: Simplify right side
    2,328.21x = 4,957,272.36
  5. Step 5: Solve for x
    x = 4,957,272.36/2,328.21
  6. Step 6: Final answer
    x = 2,129.22

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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.