Home / 2,114.74-3,171.81-1,237.65

Finding the Fourth Proportional to 2,114.74, 3,171.81 and 1,237.65

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Solution

The fourth proportional to 2,114.74, 3,171.81 and 1,237.65 is: 1,856.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,114.74 : 3,171.81 = 1,237.65 : x
  2. Step 2: Convert to fraction form
    2,114.74/3,171.81 = 1,237.65/x
  3. Step 3: Cross multiply
    2,114.74x = 3,171.81 × 1,237.65
  4. Step 4: Simplify right side
    2,114.74x = 3,925,590.65
  5. Step 5: Solve for x
    x = 3,925,590.65/2,114.74
  6. Step 6: Final answer
    x = 1,856.30

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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.