Home / 1,544.15-2,130.98-845.54

Finding the Fourth Proportional to 1,544.15, 2,130.98 and 845.54

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Solution

The fourth proportional to 1,544.15, 2,130.98 and 845.54 is: 1,166.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,544.15 : 2,130.98 = 845.54 : x
  2. Step 2: Convert to fraction form
    1,544.15/2,130.98 = 845.54/x
  3. Step 3: Cross multiply
    1,544.15x = 2,130.98 × 845.54
  4. Step 4: Simplify right side
    1,544.15x = 1,801,813.95
  5. Step 5: Solve for x
    x = 1,801,813.95/1,544.15
  6. Step 6: Final answer
    x = 1,166.87

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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.