Home / 1,550.01-2,140.92-1,158.78

Finding the Fourth Proportional to 1,550.01, 2,140.92 and 1,158.78

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Solution

The fourth proportional to 1,550.01, 2,140.92 and 1,158.78 is: 1,600.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,550.01 : 2,140.92 = 1,158.78 : x
  2. Step 2: Convert to fraction form
    1,550.01/2,140.92 = 1,158.78/x
  3. Step 3: Cross multiply
    1,550.01x = 2,140.92 × 1,158.78
  4. Step 4: Simplify right side
    1,550.01x = 2,480,855.28
  5. Step 5: Solve for x
    x = 2,480,855.28/1,550.01
  6. Step 6: Final answer
    x = 1,600.54

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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.