Home / 1,860.43-2,567.42-1,021.12

Finding the Fourth Proportional to 1,860.43, 2,567.42 and 1,021.12

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Solution

The fourth proportional to 1,860.43, 2,567.42 and 1,021.12 is: 1,409.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,860.43 : 2,567.42 = 1,021.12 : x
  2. Step 2: Convert to fraction form
    1,860.43/2,567.42 = 1,021.12/x
  3. Step 3: Cross multiply
    1,860.43x = 2,567.42 × 1,021.12
  4. Step 4: Simplify right side
    1,860.43x = 2,621,643.91
  5. Step 5: Solve for x
    x = 2,621,643.91/1,860.43
  6. Step 6: Final answer
    x = 1,409.16

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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.