Home / 1,910.20-2,636.08-1,113.46

Finding the Fourth Proportional to 1,910.20, 2,636.08 and 1,113.46

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Solution

The fourth proportional to 1,910.20, 2,636.08 and 1,113.46 is: 1,536.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,910.20 : 2,636.08 = 1,113.46 : x
  2. Step 2: Convert to fraction form
    1,910.20/2,636.08 = 1,113.46/x
  3. Step 3: Cross multiply
    1,910.20x = 2,636.08 × 1,113.46
  4. Step 4: Simplify right side
    1,910.20x = 2,935,173.44
  5. Step 5: Solve for x
    x = 2,935,173.44/1,910.20
  6. Step 6: Final answer
    x = 1,536.58

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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.