Home / 2,993.03-4,130.77-2,156.50

Finding the Fourth Proportional to 2,993.03, 4,130.77 and 2,156.50

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Solution

The fourth proportional to 2,993.03, 4,130.77 and 2,156.50 is: 2,976.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,993.03 : 4,130.77 = 2,156.50 : x
  2. Step 2: Convert to fraction form
    2,993.03/4,130.77 = 2,156.50/x
  3. Step 3: Cross multiply
    2,993.03x = 4,130.77 × 2,156.50
  4. Step 4: Simplify right side
    2,993.03x = 8,908,003.77
  5. Step 5: Solve for x
    x = 8,908,003.77/2,993.03
  6. Step 6: Final answer
    x = 2,976.25

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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.