Home / 2,678.32-3,698.04-1,933.93

Finding the Fourth Proportional to 2,678.32, 3,698.04 and 1,933.93

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Solution

The fourth proportional to 2,678.32, 3,698.04 and 1,933.93 is: 2,670.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,678.32 : 3,698.04 = 1,933.93 : x
  2. Step 2: Convert to fraction form
    2,678.32/3,698.04 = 1,933.93/x
  3. Step 3: Cross multiply
    2,678.32x = 3,698.04 × 1,933.93
  4. Step 4: Simplify right side
    2,678.32x = 7,151,750.50
  5. Step 5: Solve for x
    x = 7,151,750.50/2,678.32
  6. Step 6: Final answer
    x = 2,670.24

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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.