Home / 1,106.40-1,525.70-733.25

Finding the Fourth Proportional to 1,106.40, 1,525.70 and 733.25

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Solution

The fourth proportional to 1,106.40, 1,525.70 and 733.25 is: 1,011.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,106.40 : 1,525.70 = 733.25 : x
  2. Step 2: Convert to fraction form
    1,106.40/1,525.70 = 733.25/x
  3. Step 3: Cross multiply
    1,106.40x = 1,525.70 × 733.25
  4. Step 4: Simplify right side
    1,106.40x = 1,118,719.53
  5. Step 5: Solve for x
    x = 1,118,719.53/1,106.40
  6. Step 6: Final answer
    x = 1,011.13

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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.