Home / 2,923.90-4,038.20-2,740.74

Finding the Fourth Proportional to 2,923.90, 4,038.20 and 2,740.74

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Solution

The fourth proportional to 2,923.90, 4,038.20 and 2,740.74 is: 3,785.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,923.90 : 4,038.20 = 2,740.74 : x
  2. Step 2: Convert to fraction form
    2,923.90/4,038.20 = 2,740.74/x
  3. Step 3: Cross multiply
    2,923.90x = 4,038.20 × 2,740.74
  4. Step 4: Simplify right side
    2,923.90x = 11,067,653.12
  5. Step 5: Solve for x
    x = 11,067,653.12/2,923.90
  6. Step 6: Final answer
    x = 3,785.24

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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.