Home / 2,976.95-4,465.47-1,128.94

Finding the Fourth Proportional to 2,976.95, 4,465.47 and 1,128.94

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Solution

The fourth proportional to 2,976.95, 4,465.47 and 1,128.94 is: 1,693.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,976.95 : 4,465.47 = 1,128.94 : x
  2. Step 2: Convert to fraction form
    2,976.95/4,465.47 = 1,128.94/x
  3. Step 3: Cross multiply
    2,976.95x = 4,465.47 × 1,128.94
  4. Step 4: Simplify right side
    2,976.95x = 5,041,247.70
  5. Step 5: Solve for x
    x = 5,041,247.70/2,976.95
  6. Step 6: Final answer
    x = 1,693.43

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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.