Home / 2,130.36-3,197.70-1,648.68

Finding the Fourth Proportional to 2,130.36, 3,197.70 and 1,648.68

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Solution

The fourth proportional to 2,130.36, 3,197.70 and 1,648.68 is: 2,474.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,130.36 : 3,197.70 = 1,648.68 : x
  2. Step 2: Convert to fraction form
    2,130.36/3,197.70 = 1,648.68/x
  3. Step 3: Cross multiply
    2,130.36x = 3,197.70 × 1,648.68
  4. Step 4: Simplify right side
    2,130.36x = 5,271,984.04
  5. Step 5: Solve for x
    x = 5,271,984.04/2,130.36
  6. Step 6: Final answer
    x = 2,474.69

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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.