Home / 1,016.28-1,401.75-767.16

Finding the Fourth Proportional to 1,016.28, 1,401.75 and 767.16

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Solution

The fourth proportional to 1,016.28, 1,401.75 and 767.16 is: 1,058.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,016.28 : 1,401.75 = 767.16 : x
  2. Step 2: Convert to fraction form
    1,016.28/1,401.75 = 767.16/x
  3. Step 3: Cross multiply
    1,016.28x = 1,401.75 × 767.16
  4. Step 4: Simplify right side
    1,016.28x = 1,075,366.53
  5. Step 5: Solve for x
    x = 1,075,366.53/1,016.28
  6. Step 6: Final answer
    x = 1,058.14

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1.5x scale

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.