Home / 2,042.13-2,815.31-1,377.93

Finding the Fourth Proportional to 2,042.13, 2,815.31 and 1,377.93

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Solution

The fourth proportional to 2,042.13, 2,815.31 and 1,377.93 is: 1,899.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,042.13 : 2,815.31 = 1,377.93 : x
  2. Step 2: Convert to fraction form
    2,042.13/2,815.31 = 1,377.93/x
  3. Step 3: Cross multiply
    2,042.13x = 2,815.31 × 1,377.93
  4. Step 4: Simplify right side
    2,042.13x = 3,879,303.55
  5. Step 5: Solve for x
    x = 3,879,303.55/2,042.13
  6. Step 6: Final answer
    x = 1,899.64

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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.