Home / 1,130.00-1,561.35-933.17

Finding the Fourth Proportional to 1,130.00, 1,561.35 and 933.17

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Solution

The fourth proportional to 1,130.00, 1,561.35 and 933.17 is: 1,289.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,130.00 : 1,561.35 = 933.17 : x
  2. Step 2: Convert to fraction form
    1,130.00/1,561.35 = 933.17/x
  3. Step 3: Cross multiply
    1,130.00x = 1,561.35 × 933.17
  4. Step 4: Simplify right side
    1,130.00x = 1,456,997.17
  5. Step 5: Solve for x
    x = 1,456,997.17/1,130.00
  6. Step 6: Final answer
    x = 1,289.38

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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.