Home / 3,618.63-5,427.95-1,154.21

Finding the Fourth Proportional to 3,618.63, 5,427.95 and 1,154.21

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Solution

The fourth proportional to 3,618.63, 5,427.95 and 1,154.21 is: 1,731.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,618.63 : 5,427.95 = 1,154.21 : x
  2. Step 2: Convert to fraction form
    3,618.63/5,427.95 = 1,154.21/x
  3. Step 3: Cross multiply
    3,618.63x = 5,427.95 × 1,154.21
  4. Step 4: Simplify right side
    3,618.63x = 6,264,961.26
  5. Step 5: Solve for x
    x = 6,264,961.26/3,618.63
  6. Step 6: Final answer
    x = 1,731.31

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Similar ratio
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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.