Home / 3,087.93-4,261.17-1,690.41

Finding the Fourth Proportional to 3,087.93, 4,261.17 and 1,690.41

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Solution

The fourth proportional to 3,087.93, 4,261.17 and 1,690.41 is: 2,332.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,087.93 : 4,261.17 = 1,690.41 : x
  2. Step 2: Convert to fraction form
    3,087.93/4,261.17 = 1,690.41/x
  3. Step 3: Cross multiply
    3,087.93x = 4,261.17 × 1,690.41
  4. Step 4: Simplify right side
    3,087.93x = 7,203,124.38
  5. Step 5: Solve for x
    x = 7,203,124.38/3,087.93
  6. Step 6: Final answer
    x = 2,332.67

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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.