Home / 1,533.26-2,115.23-1,200.35

Finding the Fourth Proportional to 1,533.26, 2,115.23 and 1,200.35

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Solution

The fourth proportional to 1,533.26, 2,115.23 and 1,200.35 is: 1,655.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,533.26 : 2,115.23 = 1,200.35 : x
  2. Step 2: Convert to fraction form
    1,533.26/2,115.23 = 1,200.35/x
  3. Step 3: Cross multiply
    1,533.26x = 2,115.23 × 1,200.35
  4. Step 4: Simplify right side
    1,533.26x = 2,538,999.75
  5. Step 5: Solve for x
    x = 2,538,999.75/1,533.26
  6. Step 6: Final answer
    x = 1,655.95

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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.