Home / 1,263.33-1,738.11-1,113.28

Finding the Fourth Proportional to 1,263.33, 1,738.11 and 1,113.28

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Solution

The fourth proportional to 1,263.33, 1,738.11 and 1,113.28 is: 1,531.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,263.33 : 1,738.11 = 1,113.28 : x
  2. Step 2: Convert to fraction form
    1,263.33/1,738.11 = 1,113.28/x
  3. Step 3: Cross multiply
    1,263.33x = 1,738.11 × 1,113.28
  4. Step 4: Simplify right side
    1,263.33x = 1,935,002.93
  5. Step 5: Solve for x
    x = 1,935,002.93/1,263.33
  6. Step 6: Final answer
    x = 1,531.67

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Double scale
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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.