Home / 2,625.81-3,622.41-1,681.15

Finding the Fourth Proportional to 2,625.81, 3,622.41 and 1,681.15

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Solution

The fourth proportional to 2,625.81, 3,622.41 and 1,681.15 is: 2,319.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,625.81 : 3,622.41 = 1,681.15 : x
  2. Step 2: Convert to fraction form
    2,625.81/3,622.41 = 1,681.15/x
  3. Step 3: Cross multiply
    2,625.81x = 3,622.41 × 1,681.15
  4. Step 4: Simplify right side
    2,625.81x = 6,089,794.68
  5. Step 5: Solve for x
    x = 6,089,794.68/2,625.81
  6. Step 6: Final answer
    x = 2,319.21

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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.