Home / 2,130.52-2,960.38-2,107.70

Finding the Fourth Proportional to 2,130.52, 2,960.38 and 2,107.70

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Solution

The fourth proportional to 2,130.52, 2,960.38 and 2,107.70 is: 2,928.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,130.52 : 2,960.38 = 2,107.70 : x
  2. Step 2: Convert to fraction form
    2,130.52/2,960.38 = 2,107.70/x
  3. Step 3: Cross multiply
    2,130.52x = 2,960.38 × 2,107.70
  4. Step 4: Simplify right side
    2,130.52x = 6,239,592.93
  5. Step 5: Solve for x
    x = 6,239,592.93/2,130.52
  6. Step 6: Final answer
    x = 2,928.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.