Home / 1,263.20-1,894.41-875.69

Finding the Fourth Proportional to 1,263.20, 1,894.41 and 875.69

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Solution

The fourth proportional to 1,263.20, 1,894.41 and 875.69 is: 1,313.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,263.20 : 1,894.41 = 875.69 : x
  2. Step 2: Convert to fraction form
    1,263.20/1,894.41 = 875.69/x
  3. Step 3: Cross multiply
    1,263.20x = 1,894.41 × 875.69
  4. Step 4: Simplify right side
    1,263.20x = 1,658,915.89
  5. Step 5: Solve for x
    x = 1,658,915.89/1,263.20
  6. Step 6: Final answer
    x = 1,313.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.