Home / 7,710.15-11,561.63-2,779.14

Finding the Fourth Proportional to 7,710.15, 11,561.63 and 2,779.14

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Solution

The fourth proportional to 7,710.15, 11,561.63 and 2,779.14 is: 4,167.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,710.15 : 11,561.63 = 2,779.14 : x
  2. Step 2: Convert to fraction form
    7,710.15/11,561.63 = 2,779.14/x
  3. Step 3: Cross multiply
    7,710.15x = 11,561.63 × 2,779.14
  4. Step 4: Simplify right side
    7,710.15x = 32,131,417.86
  5. Step 5: Solve for x
    x = 32,131,417.86/7,710.15
  6. Step 6: Final answer
    x = 4,167.42

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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.