Home / 3,038.52-4,195.46-2,990.10

Finding the Fourth Proportional to 3,038.52, 4,195.46 and 2,990.10

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Solution

The fourth proportional to 3,038.52, 4,195.46 and 2,990.10 is: 4,128.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,038.52 : 4,195.46 = 2,990.10 : x
  2. Step 2: Convert to fraction form
    3,038.52/4,195.46 = 2,990.10/x
  3. Step 3: Cross multiply
    3,038.52x = 4,195.46 × 2,990.10
  4. Step 4: Simplify right side
    3,038.52x = 12,544,844.95
  5. Step 5: Solve for x
    x = 12,544,844.95/3,038.52
  6. Step 6: Final answer
    x = 4,128.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.