Home / 5,479.13-8,214.58-1,779.15

Finding the Fourth Proportional to 5,479.13, 8,214.58 and 1,779.15

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Solution

The fourth proportional to 5,479.13, 8,214.58 and 1,779.15 is: 2,667.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,479.13 : 8,214.58 = 1,779.15 : x
  2. Step 2: Convert to fraction form
    5,479.13/8,214.58 = 1,779.15/x
  3. Step 3: Cross multiply
    5,479.13x = 8,214.58 × 1,779.15
  4. Step 4: Simplify right side
    5,479.13x = 14,614,970.01
  5. Step 5: Solve for x
    x = 14,614,970.01/5,479.13
  6. Step 6: Final answer
    x = 2,667.39

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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.