Home / 1,241.12-1,707.29-1,038.14

Finding the Fourth Proportional to 1,241.12, 1,707.29 and 1,038.14

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Solution

The fourth proportional to 1,241.12, 1,707.29 and 1,038.14 is: 1,428.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,241.12 : 1,707.29 = 1,038.14 : x
  2. Step 2: Convert to fraction form
    1,241.12/1,707.29 = 1,038.14/x
  3. Step 3: Cross multiply
    1,241.12x = 1,707.29 × 1,038.14
  4. Step 4: Simplify right side
    1,241.12x = 1,772,400.10
  5. Step 5: Solve for x
    x = 1,772,400.10/1,241.12
  6. Step 6: Final answer
    x = 1,428.07

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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.