Home / 4,764.88-7,148.40-1,478.08

Finding the Fourth Proportional to 4,764.88, 7,148.40 and 1,478.08

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Solution

The fourth proportional to 4,764.88, 7,148.40 and 1,478.08 is: 2,217.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,764.88 : 7,148.40 = 1,478.08 : x
  2. Step 2: Convert to fraction form
    4,764.88/7,148.40 = 1,478.08/x
  3. Step 3: Cross multiply
    4,764.88x = 7,148.40 × 1,478.08
  4. Step 4: Simplify right side
    4,764.88x = 10,565,907.07
  5. Step 5: Solve for x
    x = 10,565,907.07/4,764.88
  6. Step 6: Final answer
    x = 2,217.46

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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.