Home / 1,183.12-1,632.90-1,155.58

Finding the Fourth Proportional to 1,183.12, 1,632.90 and 1,155.58

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Solution

The fourth proportional to 1,183.12, 1,632.90 and 1,155.58 is: 1,594.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,183.12 : 1,632.90 = 1,155.58 : x
  2. Step 2: Convert to fraction form
    1,183.12/1,632.90 = 1,155.58/x
  3. Step 3: Cross multiply
    1,183.12x = 1,632.90 × 1,155.58
  4. Step 4: Simplify right side
    1,183.12x = 1,886,946.58
  5. Step 5: Solve for x
    x = 1,886,946.58/1,183.12
  6. Step 6: Final answer
    x = 1,594.89

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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.