Home / 2,314.32-3,189.12-1,964.40

Finding the Fourth Proportional to 2,314.32, 3,189.12 and 1,964.40

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Solution

The fourth proportional to 2,314.32, 3,189.12 and 1,964.40 is: 2,706.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,314.32 : 3,189.12 = 1,964.40 : x
  2. Step 2: Convert to fraction form
    2,314.32/3,189.12 = 1,964.40/x
  3. Step 3: Cross multiply
    2,314.32x = 3,189.12 × 1,964.40
  4. Step 4: Simplify right side
    2,314.32x = 6,264,707.33
  5. Step 5: Solve for x
    x = 6,264,707.33/2,314.32
  6. Step 6: Final answer
    x = 2,706.93

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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.