Home / 5,127.95-7,078.14-3,003.98

Finding the Fourth Proportional to 5,127.95, 7,078.14 and 3,003.98

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Solution

The fourth proportional to 5,127.95, 7,078.14 and 3,003.98 is: 4,146.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,127.95 : 7,078.14 = 3,003.98 : x
  2. Step 2: Convert to fraction form
    5,127.95/7,078.14 = 3,003.98/x
  3. Step 3: Cross multiply
    5,127.95x = 7,078.14 × 3,003.98
  4. Step 4: Simplify right side
    5,127.95x = 21,262,555.61
  5. Step 5: Solve for x
    x = 21,262,555.61/5,127.95
  6. Step 6: Final answer
    x = 4,146.40

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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.