Home / 3,087.37-4,260.63-1,690.12

Finding the Fourth Proportional to 3,087.37, 4,260.63 and 1,690.12

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Solution

The fourth proportional to 3,087.37, 4,260.63 and 1,690.12 is: 2,332.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,087.37 : 4,260.63 = 1,690.12 : x
  2. Step 2: Convert to fraction form
    3,087.37/4,260.63 = 1,690.12/x
  3. Step 3: Cross multiply
    3,087.37x = 4,260.63 × 1,690.12
  4. Step 4: Simplify right side
    3,087.37x = 7,200,975.98
  5. Step 5: Solve for x
    x = 7,200,975.98/3,087.37
  6. Step 6: Final answer
    x = 2,332.40

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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.