Home / 1,855.10-2,560.12-1,226.18

Finding the Fourth Proportional to 1,855.10, 2,560.12 and 1,226.18

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Solution

The fourth proportional to 1,855.10, 2,560.12 and 1,226.18 is: 1,692.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,855.10 : 2,560.12 = 1,226.18 : x
  2. Step 2: Convert to fraction form
    1,855.10/2,560.12 = 1,226.18/x
  3. Step 3: Cross multiply
    1,855.10x = 2,560.12 × 1,226.18
  4. Step 4: Simplify right side
    1,855.10x = 3,139,171.28
  5. Step 5: Solve for x
    x = 3,139,171.28/1,855.10
  6. Step 6: Final answer
    x = 1,692.18

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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.