Home / 2,171.07-3,250.40-1,439.19

Finding the Fourth Proportional to 2,171.07, 3,250.40 and 1,439.19

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Solution

The fourth proportional to 2,171.07, 3,250.40 and 1,439.19 is: 2,154.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,171.07 : 3,250.40 = 1,439.19 : x
  2. Step 2: Convert to fraction form
    2,171.07/3,250.40 = 1,439.19/x
  3. Step 3: Cross multiply
    2,171.07x = 3,250.40 × 1,439.19
  4. Step 4: Simplify right side
    2,171.07x = 4,677,935.98
  5. Step 5: Solve for x
    x = 4,677,935.98/2,171.07
  6. Step 6: Final answer
    x = 2,154.67

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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.