Home / 3,070.40-4,239.96-2,235.92

Finding the Fourth Proportional to 3,070.40, 4,239.96 and 2,235.92

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Solution

The fourth proportional to 3,070.40, 4,239.96 and 2,235.92 is: 3,087.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,070.40 : 4,239.96 = 2,235.92 : x
  2. Step 2: Convert to fraction form
    3,070.40/4,239.96 = 2,235.92/x
  3. Step 3: Cross multiply
    3,070.40x = 4,239.96 × 2,235.92
  4. Step 4: Simplify right side
    3,070.40x = 9,480,211.36
  5. Step 5: Solve for x
    x = 9,480,211.36/3,070.40
  6. Step 6: Final answer
    x = 3,087.61

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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.