Home / 2,690.41-3,710.74-1,804.68

Finding the Fourth Proportional to 2,690.41, 3,710.74 and 1,804.68

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Solution

The fourth proportional to 2,690.41, 3,710.74 and 1,804.68 is: 2,489.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,690.41 : 3,710.74 = 1,804.68 : x
  2. Step 2: Convert to fraction form
    2,690.41/3,710.74 = 1,804.68/x
  3. Step 3: Cross multiply
    2,690.41x = 3,710.74 × 1,804.68
  4. Step 4: Simplify right side
    2,690.41x = 6,696,698.26
  5. Step 5: Solve for x
    x = 6,696,698.26/2,690.41
  6. Step 6: Final answer
    x = 2,489.10

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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.