Home / 1,211.23-1,815.71-595.45

Finding the Fourth Proportional to 1,211.23, 1,815.71 and 595.45

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Solution

The fourth proportional to 1,211.23, 1,815.71 and 595.45 is: 892.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211.23 : 1,815.71 = 595.45 : x
  2. Step 2: Convert to fraction form
    1,211.23/1,815.71 = 595.45/x
  3. Step 3: Cross multiply
    1,211.23x = 1,815.71 × 595.45
  4. Step 4: Simplify right side
    1,211.23x = 1,081,152.46
  5. Step 5: Solve for x
    x = 1,081,152.46/1,211.23
  6. Step 6: Final answer
    x = 892.61

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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.