Home / 3,087.36-4,628.16-1,139.04

Finding the Fourth Proportional to 3,087.36, 4,628.16 and 1,139.04

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Solution

The fourth proportional to 3,087.36, 4,628.16 and 1,139.04 is: 1,707.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,087.36 : 4,628.16 = 1,139.04 : x
  2. Step 2: Convert to fraction form
    3,087.36/4,628.16 = 1,139.04/x
  3. Step 3: Cross multiply
    3,087.36x = 4,628.16 × 1,139.04
  4. Step 4: Simplify right side
    3,087.36x = 5,271,659.37
  5. Step 5: Solve for x
    x = 5,271,659.37/3,087.36
  6. Step 6: Final answer
    x = 1,707.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.