Home / 2,989.95-4,486.80-1,141.23

Finding the Fourth Proportional to 2,989.95, 4,486.80 and 1,141.23

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Solution

The fourth proportional to 2,989.95, 4,486.80 and 1,141.23 is: 1,712.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,989.95 : 4,486.80 = 1,141.23 : x
  2. Step 2: Convert to fraction form
    2,989.95/4,486.80 = 1,141.23/x
  3. Step 3: Cross multiply
    2,989.95x = 4,486.80 × 1,141.23
  4. Step 4: Simplify right side
    2,989.95x = 5,120,470.76
  5. Step 5: Solve for x
    x = 5,120,470.76/2,989.95
  6. Step 6: Final answer
    x = 1,712.56

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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.