Home / 3,030.12-4,181.46-2,147.40

Finding the Fourth Proportional to 3,030.12, 4,181.46 and 2,147.40

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Solution

The fourth proportional to 3,030.12, 4,181.46 and 2,147.40 is: 2,963.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,030.12 : 4,181.46 = 2,147.40 : x
  2. Step 2: Convert to fraction form
    3,030.12/4,181.46 = 2,147.40/x
  3. Step 3: Cross multiply
    3,030.12x = 4,181.46 × 2,147.40
  4. Step 4: Simplify right side
    3,030.12x = 8,979,267.20
  5. Step 5: Solve for x
    x = 8,979,267.20/3,030.12
  6. Step 6: Final answer
    x = 2,963.34

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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.