Home / 2,570.23-3,851.70-1,878.49

Finding the Fourth Proportional to 2,570.23, 3,851.70 and 1,878.49

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Solution

The fourth proportional to 2,570.23, 3,851.70 and 1,878.49 is: 2,815.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,570.23 : 3,851.70 = 1,878.49 : x
  2. Step 2: Convert to fraction form
    2,570.23/3,851.70 = 1,878.49/x
  3. Step 3: Cross multiply
    2,570.23x = 3,851.70 × 1,878.49
  4. Step 4: Simplify right side
    2,570.23x = 7,235,379.93
  5. Step 5: Solve for x
    x = 7,235,379.93/2,570.23
  6. Step 6: Final answer
    x = 2,815.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.