Home / 2,051.45-2,830.98-1,119.95

Finding the Fourth Proportional to 2,051.45, 2,830.98 and 1,119.95

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Solution

The fourth proportional to 2,051.45, 2,830.98 and 1,119.95 is: 1,545.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,051.45 : 2,830.98 = 1,119.95 : x
  2. Step 2: Convert to fraction form
    2,051.45/2,830.98 = 1,119.95/x
  3. Step 3: Cross multiply
    2,051.45x = 2,830.98 × 1,119.95
  4. Step 4: Simplify right side
    2,051.45x = 3,170,541.90
  5. Step 5: Solve for x
    x = 3,170,541.90/2,051.45
  6. Step 6: Final answer
    x = 1,545.52

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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.