Home / 3,030.79-4,181.87-1,771.61

Finding the Fourth Proportional to 3,030.79, 4,181.87 and 1,771.61

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Solution

The fourth proportional to 3,030.79, 4,181.87 and 1,771.61 is: 2,444.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,030.79 : 4,181.87 = 1,771.61 : x
  2. Step 2: Convert to fraction form
    3,030.79/4,181.87 = 1,771.61/x
  3. Step 3: Cross multiply
    3,030.79x = 4,181.87 × 1,771.61
  4. Step 4: Simplify right side
    3,030.79x = 7,408,628.25
  5. Step 5: Solve for x
    x = 7,408,628.25/3,030.79
  6. Step 6: Final answer
    x = 2,444.45

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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.