Home / 3,095.19-4,271.38-1,678.88

Finding the Fourth Proportional to 3,095.19, 4,271.38 and 1,678.88

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Solution

The fourth proportional to 3,095.19, 4,271.38 and 1,678.88 is: 2,316.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,095.19 : 4,271.38 = 1,678.88 : x
  2. Step 2: Convert to fraction form
    3,095.19/4,271.38 = 1,678.88/x
  3. Step 3: Cross multiply
    3,095.19x = 4,271.38 × 1,678.88
  4. Step 4: Simplify right side
    3,095.19x = 7,171,140.94
  5. Step 5: Solve for x
    x = 7,171,140.94/3,095.19
  6. Step 6: Final answer
    x = 2,316.87

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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.