Home / 2,176.95-3,003.13-1,292.13

Finding the Fourth Proportional to 2,176.95, 3,003.13 and 1,292.13

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Solution

The fourth proportional to 2,176.95, 3,003.13 and 1,292.13 is: 1,782.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,176.95 : 3,003.13 = 1,292.13 : x
  2. Step 2: Convert to fraction form
    2,176.95/3,003.13 = 1,292.13/x
  3. Step 3: Cross multiply
    2,176.95x = 3,003.13 × 1,292.13
  4. Step 4: Simplify right side
    2,176.95x = 3,880,424.72
  5. Step 5: Solve for x
    x = 3,880,424.72/2,176.95
  6. Step 6: Final answer
    x = 1,782.51

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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.