Home / 2,079.95-2,870.30-1,135.77

Finding the Fourth Proportional to 2,079.95, 2,870.30 and 1,135.77

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Solution

The fourth proportional to 2,079.95, 2,870.30 and 1,135.77 is: 1,567.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,079.95 : 2,870.30 = 1,135.77 : x
  2. Step 2: Convert to fraction form
    2,079.95/2,870.30 = 1,135.77/x
  3. Step 3: Cross multiply
    2,079.95x = 2,870.30 × 1,135.77
  4. Step 4: Simplify right side
    2,079.95x = 3,259,992.66
  5. Step 5: Solve for x
    x = 3,259,992.66/2,079.95
  6. Step 6: Final answer
    x = 1,567.34

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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.