Home / 5,479.67-8,214.31-1,779.32

Finding the Fourth Proportional to 5,479.67, 8,214.31 and 1,779.32

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Solution

The fourth proportional to 5,479.67, 8,214.31 and 1,779.32 is: 2,667.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,479.67 : 8,214.31 = 1,779.32 : x
  2. Step 2: Convert to fraction form
    5,479.67/8,214.31 = 1,779.32/x
  3. Step 3: Cross multiply
    5,479.67x = 8,214.31 × 1,779.32
  4. Step 4: Simplify right side
    5,479.67x = 14,615,886.07
  5. Step 5: Solve for x
    x = 14,615,886.07/5,479.67
  6. Step 6: Final answer
    x = 2,667.29

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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.