Home / 1,860.47-2,567.31-1,021.17

Finding the Fourth Proportional to 1,860.47, 2,567.31 and 1,021.17

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Solution

The fourth proportional to 1,860.47, 2,567.31 and 1,021.17 is: 1,409.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,860.47 : 2,567.31 = 1,021.17 : x
  2. Step 2: Convert to fraction form
    1,860.47/2,567.31 = 1,021.17/x
  3. Step 3: Cross multiply
    1,860.47x = 2,567.31 × 1,021.17
  4. Step 4: Simplify right side
    1,860.47x = 2,621,665.75
  5. Step 5: Solve for x
    x = 2,621,665.75/1,860.47
  6. Step 6: Final answer
    x = 1,409.14

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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.