Home / 2,140.20-2,931.30-2,014.09

Finding the Fourth Proportional to 2,140.20, 2,931.30 and 2,014.09

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Solution

The fourth proportional to 2,140.20, 2,931.30 and 2,014.09 is: 2,758.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,140.20 : 2,931.30 = 2,014.09 : x
  2. Step 2: Convert to fraction form
    2,140.20/2,931.30 = 2,014.09/x
  3. Step 3: Cross multiply
    2,140.20x = 2,931.30 × 2,014.09
  4. Step 4: Simplify right side
    2,140.20x = 5,903,894.69
  5. Step 5: Solve for x
    x = 5,903,894.69/2,140.20
  6. Step 6: Final answer
    x = 2,758.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.