Home / 3,935.09-5,430.68-2,341.31

Finding the Fourth Proportional to 3,935.09, 5,430.68 and 2,341.31

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Solution

The fourth proportional to 3,935.09, 5,430.68 and 2,341.31 is: 3,231.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,935.09 : 5,430.68 = 2,341.31 : x
  2. Step 2: Convert to fraction form
    3,935.09/5,430.68 = 2,341.31/x
  3. Step 3: Cross multiply
    3,935.09x = 5,430.68 × 2,341.31
  4. Step 4: Simplify right side
    3,935.09x = 12,714,866.53
  5. Step 5: Solve for x
    x = 12,714,866.53/3,935.09
  6. Step 6: Final answer
    x = 3,231.15

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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.