Home / 3,078.93-4,254.51-2,193.20

Finding the Fourth Proportional to 3,078.93, 4,254.51 and 2,193.20

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Solution

The fourth proportional to 3,078.93, 4,254.51 and 2,193.20 is: 3,030.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,078.93 : 4,254.51 = 2,193.20 : x
  2. Step 2: Convert to fraction form
    3,078.93/4,254.51 = 2,193.20/x
  3. Step 3: Cross multiply
    3,078.93x = 4,254.51 × 2,193.20
  4. Step 4: Simplify right side
    3,078.93x = 9,330,970.06
  5. Step 5: Solve for x
    x = 9,330,970.06/3,078.93
  6. Step 6: Final answer
    x = 3,030.59

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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.