Home / 4,319.60-6,479.40-2,764.40

Finding the Fourth Proportional to 4,319.60, 6,479.40 and 2,764.40

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Solution

The fourth proportional to 4,319.60, 6,479.40 and 2,764.40 is: 4,146.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,319.60 : 6,479.40 = 2,764.40 : x
  2. Step 2: Convert to fraction form
    4,319.60/6,479.40 = 2,764.40/x
  3. Step 3: Cross multiply
    4,319.60x = 6,479.40 × 2,764.40
  4. Step 4: Simplify right side
    4,319.60x = 17,911,653.36
  5. Step 5: Solve for x
    x = 17,911,653.36/4,319.60
  6. Step 6: Final answer
    x = 4,146.60

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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.