Home / 5,478.90-7,554.29-3,801.75

Finding the Fourth Proportional to 5,478.90, 7,554.29 and 3,801.75

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Solution

The fourth proportional to 5,478.90, 7,554.29 and 3,801.75 is: 5,241.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,478.90 : 7,554.29 = 3,801.75 : x
  2. Step 2: Convert to fraction form
    5,478.90/7,554.29 = 3,801.75/x
  3. Step 3: Cross multiply
    5,478.90x = 7,554.29 × 3,801.75
  4. Step 4: Simplify right side
    5,478.90x = 28,719,522.01
  5. Step 5: Solve for x
    x = 28,719,522.01/5,478.90
  6. Step 6: Final answer
    x = 5,241.84

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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.