Home / 2,119.48-2,925.66-1,855.96

Finding the Fourth Proportional to 2,119.48, 2,925.66 and 1,855.96

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Solution

The fourth proportional to 2,119.48, 2,925.66 and 1,855.96 is: 2,561.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,119.48 : 2,925.66 = 1,855.96 : x
  2. Step 2: Convert to fraction form
    2,119.48/2,925.66 = 1,855.96/x
  3. Step 3: Cross multiply
    2,119.48x = 2,925.66 × 1,855.96
  4. Step 4: Simplify right side
    2,119.48x = 5,429,907.93
  5. Step 5: Solve for x
    x = 5,429,907.93/2,119.48
  6. Step 6: Final answer
    x = 2,561.91

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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.