Home / 3,150.10-4,731.90-1,918.18

Finding the Fourth Proportional to 3,150.10, 4,731.90 and 1,918.18

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Solution

The fourth proportional to 3,150.10, 4,731.90 and 1,918.18 is: 2,881.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,150.10 : 4,731.90 = 1,918.18 : x
  2. Step 2: Convert to fraction form
    3,150.10/4,731.90 = 1,918.18/x
  3. Step 3: Cross multiply
    3,150.10x = 4,731.90 × 1,918.18
  4. Step 4: Simplify right side
    3,150.10x = 9,076,635.94
  5. Step 5: Solve for x
    x = 9,076,635.94/3,150.10
  6. Step 6: Final answer
    x = 2,881.38

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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.