Home / 7,165.25-9,891.38-4,779.19

Finding the Fourth Proportional to 7,165.25, 9,891.38 and 4,779.19

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Solution

The fourth proportional to 7,165.25, 9,891.38 and 4,779.19 is: 6,597.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,165.25 : 9,891.38 = 4,779.19 : x
  2. Step 2: Convert to fraction form
    7,165.25/9,891.38 = 4,779.19/x
  3. Step 3: Cross multiply
    7,165.25x = 9,891.38 × 4,779.19
  4. Step 4: Simplify right side
    7,165.25x = 47,272,784.38
  5. Step 5: Solve for x
    x = 47,272,784.38/7,165.25
  6. Step 6: Final answer
    x = 6,597.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.