Home / 3,114.30-4,671.45-2,130.15

Finding the Fourth Proportional to 3,114.30, 4,671.45 and 2,130.15

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Solution

The fourth proportional to 3,114.30, 4,671.45 and 2,130.15 is: 3,195.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,114.30 : 4,671.45 = 2,130.15 : x
  2. Step 2: Convert to fraction form
    3,114.30/4,671.45 = 2,130.15/x
  3. Step 3: Cross multiply
    3,114.30x = 4,671.45 × 2,130.15
  4. Step 4: Simplify right side
    3,114.30x = 9,950,889.22
  5. Step 5: Solve for x
    x = 9,950,889.22/3,114.30
  6. Step 6: Final answer
    x = 3,195.23

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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.