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Finding the Fourth Proportional to 2,068.95, 2,855.21 and 1,124.81

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Solution

The fourth proportional to 2,068.95, 2,855.21 and 1,124.81 is: 1,552.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,068.95 : 2,855.21 = 1,124.81 : x
  2. Step 2: Convert to fraction form
    2,068.95/2,855.21 = 1,124.81/x
  3. Step 3: Cross multiply
    2,068.95x = 2,855.21 × 1,124.81
  4. Step 4: Simplify right side
    2,068.95x = 3,211,561.62
  5. Step 5: Solve for x
    x = 3,211,561.62/2,068.95
  6. Step 6: Final answer
    x = 1,552.26

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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.