Home / 5,477.68-8,214.80-1,779.14

Finding the Fourth Proportional to 5,477.68, 8,214.80 and 1,779.14

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Solution

The fourth proportional to 5,477.68, 8,214.80 and 1,779.14 is: 2,668.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,477.68 : 8,214.80 = 1,779.14 : x
  2. Step 2: Convert to fraction form
    5,477.68/8,214.80 = 1,779.14/x
  3. Step 3: Cross multiply
    5,477.68x = 8,214.80 × 1,779.14
  4. Step 4: Simplify right side
    5,477.68x = 14,615,290.91
  5. Step 5: Solve for x
    x = 14,615,290.91/5,477.68
  6. Step 6: Final answer
    x = 2,668.15

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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.