Home / 3,935.51-5,430.37-2,520.44

Finding the Fourth Proportional to 3,935.51, 5,430.37 and 2,520.44

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Solution

The fourth proportional to 3,935.51, 5,430.37 and 2,520.44 is: 3,477.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,935.51 : 5,430.37 = 2,520.44 : x
  2. Step 2: Convert to fraction form
    3,935.51/5,430.37 = 2,520.44/x
  3. Step 3: Cross multiply
    3,935.51x = 5,430.37 × 2,520.44
  4. Step 4: Simplify right side
    3,935.51x = 13,686,921.76
  5. Step 5: Solve for x
    x = 13,686,921.76/3,935.51
  6. Step 6: Final answer
    x = 3,477.80

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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.