Home / 2,420.37-3,629.53-776.02

Finding the Fourth Proportional to 2,420.37, 3,629.53 and 776.02

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Solution

The fourth proportional to 2,420.37, 3,629.53 and 776.02 is: 1,163.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,420.37 : 3,629.53 = 776.02 : x
  2. Step 2: Convert to fraction form
    2,420.37/3,629.53 = 776.02/x
  3. Step 3: Cross multiply
    2,420.37x = 3,629.53 × 776.02
  4. Step 4: Simplify right side
    2,420.37x = 2,816,587.87
  5. Step 5: Solve for x
    x = 2,816,587.87/2,420.37
  6. Step 6: Final answer
    x = 1,163.70

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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.