Home / 2,860.38-4,290.57-1,561.14

Finding the Fourth Proportional to 2,860.38, 4,290.57 and 1,561.14

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Solution

The fourth proportional to 2,860.38, 4,290.57 and 1,561.14 is: 2,341.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,860.38 : 4,290.57 = 1,561.14 : x
  2. Step 2: Convert to fraction form
    2,860.38/4,290.57 = 1,561.14/x
  3. Step 3: Cross multiply
    2,860.38x = 4,290.57 × 1,561.14
  4. Step 4: Simplify right side
    2,860.38x = 6,698,180.45
  5. Step 5: Solve for x
    x = 6,698,180.45/2,860.38
  6. Step 6: Final answer
    x = 2,341.71

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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.