Home / 3,087.36-4,260.48-1,690.08

Finding the Fourth Proportional to 3,087.36, 4,260.48 and 1,690.08

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Solution

The fourth proportional to 3,087.36, 4,260.48 and 1,690.08 is: 2,332.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,087.36 : 4,260.48 = 1,690.08 : x
  2. Step 2: Convert to fraction form
    3,087.36/4,260.48 = 1,690.08/x
  3. Step 3: Cross multiply
    3,087.36x = 4,260.48 × 1,690.08
  4. Step 4: Simplify right side
    3,087.36x = 7,200,552.04
  5. Step 5: Solve for x
    x = 7,200,552.04/3,087.36
  6. Step 6: Final answer
    x = 2,332.27

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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.