Home / 3,138.03-4,320.63-2,664.93

Finding the Fourth Proportional to 3,138.03, 4,320.63 and 2,664.93

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Solution

The fourth proportional to 3,138.03, 4,320.63 and 2,664.93 is: 3,669.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,138.03 : 4,320.63 = 2,664.93 : x
  2. Step 2: Convert to fraction form
    3,138.03/4,320.63 = 2,664.93/x
  3. Step 3: Cross multiply
    3,138.03x = 4,320.63 × 2,664.93
  4. Step 4: Simplify right side
    3,138.03x = 11,514,176.51
  5. Step 5: Solve for x
    x = 11,514,176.51/3,138.03
  6. Step 6: Final answer
    x = 3,669.24

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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.