Home / 3,070.06-4,235.42-2,139.10

Finding the Fourth Proportional to 3,070.06, 4,235.42 and 2,139.10

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Solution

The fourth proportional to 3,070.06, 4,235.42 and 2,139.10 is: 2,951.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,070.06 : 4,235.42 = 2,139.10 : x
  2. Step 2: Convert to fraction form
    3,070.06/4,235.42 = 2,139.10/x
  3. Step 3: Cross multiply
    3,070.06x = 4,235.42 × 2,139.10
  4. Step 4: Simplify right side
    3,070.06x = 9,059,986.92
  5. Step 5: Solve for x
    x = 9,059,986.92/3,070.06
  6. Step 6: Final answer
    x = 2,951.08

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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.