Home / 2,130.48-3,213.72-2,018.44

Finding the Fourth Proportional to 2,130.48, 3,213.72 and 2,018.44

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Solution

The fourth proportional to 2,130.48, 3,213.72 and 2,018.44 is: 3,044.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,130.48 : 3,213.72 = 2,018.44 : x
  2. Step 2: Convert to fraction form
    2,130.48/3,213.72 = 2,018.44/x
  3. Step 3: Cross multiply
    2,130.48x = 3,213.72 × 2,018.44
  4. Step 4: Simplify right side
    2,130.48x = 6,486,701.00
  5. Step 5: Solve for x
    x = 6,486,701.00/2,130.48
  6. Step 6: Final answer
    x = 3,044.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.