Home / 7,784.27-11,678.45-2,590.19

Finding the Fourth Proportional to 7,784.27, 11,678.45 and 2,590.19

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Solution

The fourth proportional to 7,784.27, 11,678.45 and 2,590.19 is: 3,885.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,784.27 : 11,678.45 = 2,590.19 : x
  2. Step 2: Convert to fraction form
    7,784.27/11,678.45 = 2,590.19/x
  3. Step 3: Cross multiply
    7,784.27x = 11,678.45 × 2,590.19
  4. Step 4: Simplify right side
    7,784.27x = 30,249,391.45
  5. Step 5: Solve for x
    x = 30,249,391.45/7,784.27
  6. Step 6: Final answer
    x = 3,885.96

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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.