Home / 1,133.20-1,563.06-914.50

Finding the Fourth Proportional to 1,133.20, 1,563.06 and 914.50

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Solution

The fourth proportional to 1,133.20, 1,563.06 and 914.50 is: 1,261.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,133.20 : 1,563.06 = 914.50 : x
  2. Step 2: Convert to fraction form
    1,133.20/1,563.06 = 914.50/x
  3. Step 3: Cross multiply
    1,133.20x = 1,563.06 × 914.50
  4. Step 4: Simplify right side
    1,133.20x = 1,429,418.37
  5. Step 5: Solve for x
    x = 1,429,418.37/1,133.20
  6. Step 6: Final answer
    x = 1,261.40

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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.