Home / 3,700.51-5,550.52-1,620.28

Finding the Fourth Proportional to 3,700.51, 5,550.52 and 1,620.28

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Solution

The fourth proportional to 3,700.51, 5,550.52 and 1,620.28 is: 2,430.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,700.51 : 5,550.52 = 1,620.28 : x
  2. Step 2: Convert to fraction form
    3,700.51/5,550.52 = 1,620.28/x
  3. Step 3: Cross multiply
    3,700.51x = 5,550.52 × 1,620.28
  4. Step 4: Simplify right side
    3,700.51x = 8,993,396.55
  5. Step 5: Solve for x
    x = 8,993,396.55/3,700.51
  6. Step 6: Final answer
    x = 2,430.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.