Home / 2,983.95-4,114.15-1,987.04

Finding the Fourth Proportional to 2,983.95, 4,114.15 and 1,987.04

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Solution

The fourth proportional to 2,983.95, 4,114.15 and 1,987.04 is: 2,739.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,983.95 : 4,114.15 = 1,987.04 : x
  2. Step 2: Convert to fraction form
    2,983.95/4,114.15 = 1,987.04/x
  3. Step 3: Cross multiply
    2,983.95x = 4,114.15 × 1,987.04
  4. Step 4: Simplify right side
    2,983.95x = 8,174,985.93
  5. Step 5: Solve for x
    x = 8,174,985.93/2,983.95
  6. Step 6: Final answer
    x = 2,739.65

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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.