Home / 1,855.17-2,560.06-1,015.85

Finding the Fourth Proportional to 1,855.17, 2,560.06 and 1,015.85

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Solution

The fourth proportional to 1,855.17, 2,560.06 and 1,015.85 is: 1,401.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,855.17 : 2,560.06 = 1,015.85 : x
  2. Step 2: Convert to fraction form
    1,855.17/2,560.06 = 1,015.85/x
  3. Step 3: Cross multiply
    1,855.17x = 2,560.06 × 1,015.85
  4. Step 4: Simplify right side
    1,855.17x = 2,600,640.81
  5. Step 5: Solve for x
    x = 2,600,640.81/1,855.17
  6. Step 6: Final answer
    x = 1,401.83

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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.