Home / 5,113.80-7,646.40-3,801.60

Finding the Fourth Proportional to 5,113.80, 7,646.40 and 3,801.60

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Solution

The fourth proportional to 5,113.80, 7,646.40 and 3,801.60 is: 5,684.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,113.80 : 7,646.40 = 3,801.60 : x
  2. Step 2: Convert to fraction form
    5,113.80/7,646.40 = 3,801.60/x
  3. Step 3: Cross multiply
    5,113.80x = 7,646.40 × 3,801.60
  4. Step 4: Simplify right side
    5,113.80x = 29,068,554.24
  5. Step 5: Solve for x
    x = 29,068,554.24/5,113.80
  6. Step 6: Final answer
    x = 5,684.34

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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.