Home / 5,261.76-7,889.40-4,762.80

Finding the Fourth Proportional to 5,261.76, 7,889.40 and 4,762.80

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Solution

The fourth proportional to 5,261.76, 7,889.40 and 4,762.80 is: 7,141.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,261.76 : 7,889.40 = 4,762.80 : x
  2. Step 2: Convert to fraction form
    5,261.76/7,889.40 = 4,762.80/x
  3. Step 3: Cross multiply
    5,261.76x = 7,889.40 × 4,762.80
  4. Step 4: Simplify right side
    5,261.76x = 37,575,634.32
  5. Step 5: Solve for x
    x = 37,575,634.32/5,261.76
  6. Step 6: Final answer
    x = 7,141.27

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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.