Home / 3,179,038.20-4,387,188.08-1,821,173.64

Finding the Fourth Proportional to 3,179,038.20, 4,387,188.08 and 1,821,173.64

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Solution

The fourth proportional to 3,179,038.20, 4,387,188.08 and 1,821,173.64 is: 2,513,285.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,179,038.20 : 4,387,188.08 = 1,821,173.64 : x
  2. Step 2: Convert to fraction form
    3,179,038.20/4,387,188.08 = 1,821,173.64/x
  3. Step 3: Cross multiply
    3,179,038.20x = 4,387,188.08 × 1,821,173.64
  4. Step 4: Simplify right side
    3,179,038.20x = 7,989,831,285,018.21
  5. Step 5: Solve for x
    x = 7,989,831,285,018.21/3,179,038.20
  6. Step 6: Final answer
    x = 2,513,285.71

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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.