Home / 1,537.31-2,119.07-1,005.26

Finding the Fourth Proportional to 1,537.31, 2,119.07 and 1,005.26

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Solution

The fourth proportional to 1,537.31, 2,119.07 and 1,005.26 is: 1,385.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,537.31 : 2,119.07 = 1,005.26 : x
  2. Step 2: Convert to fraction form
    1,537.31/2,119.07 = 1,005.26/x
  3. Step 3: Cross multiply
    1,537.31x = 2,119.07 × 1,005.26
  4. Step 4: Simplify right side
    1,537.31x = 2,130,208.23
  5. Step 5: Solve for x
    x = 2,130,208.23/1,537.31
  6. Step 6: Final answer
    x = 1,385.67

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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.