Home / 1,445.36-2,166.18-1,225.46

Finding the Fourth Proportional to 1,445.36, 2,166.18 and 1,225.46

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Solution

The fourth proportional to 1,445.36, 2,166.18 and 1,225.46 is: 1,836.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,445.36 : 2,166.18 = 1,225.46 : x
  2. Step 2: Convert to fraction form
    1,445.36/2,166.18 = 1,225.46/x
  3. Step 3: Cross multiply
    1,445.36x = 2,166.18 × 1,225.46
  4. Step 4: Simplify right side
    1,445.36x = 2,654,566.94
  5. Step 5: Solve for x
    x = 2,654,566.94/1,445.36
  6. Step 6: Final answer
    x = 1,836.61

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1.5x scale

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.