Home / 3,018.42-4,165.65-1,900.32

Finding the Fourth Proportional to 3,018.42, 4,165.65 and 1,900.32

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Solution

The fourth proportional to 3,018.42, 4,165.65 and 1,900.32 is: 2,622.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,018.42 : 4,165.65 = 1,900.32 : x
  2. Step 2: Convert to fraction form
    3,018.42/4,165.65 = 1,900.32/x
  3. Step 3: Cross multiply
    3,018.42x = 4,165.65 × 1,900.32
  4. Step 4: Simplify right side
    3,018.42x = 7,916,051.93
  5. Step 5: Solve for x
    x = 7,916,051.93/3,018.42
  6. Step 6: Final answer
    x = 2,622.58

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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.