Home / 5,639.36-7,783.05-3,402.51

Finding the Fourth Proportional to 5,639.36, 7,783.05 and 3,402.51

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Solution

The fourth proportional to 5,639.36, 7,783.05 and 3,402.51 is: 4,695.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,639.36 : 7,783.05 = 3,402.51 : x
  2. Step 2: Convert to fraction form
    5,639.36/7,783.05 = 3,402.51/x
  3. Step 3: Cross multiply
    5,639.36x = 7,783.05 × 3,402.51
  4. Step 4: Simplify right side
    5,639.36x = 26,481,889.03
  5. Step 5: Solve for x
    x = 26,481,889.03/5,639.36
  6. Step 6: Final answer
    x = 4,695.91

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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.