Home / 7,578.84-11,369.40-2,651.40

Finding the Fourth Proportional to 7,578.84, 11,369.40 and 2,651.40

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Solution

The fourth proportional to 7,578.84, 11,369.40 and 2,651.40 is: 3,977.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,578.84 : 11,369.40 = 2,651.40 : x
  2. Step 2: Convert to fraction form
    7,578.84/11,369.40 = 2,651.40/x
  3. Step 3: Cross multiply
    7,578.84x = 11,369.40 × 2,651.40
  4. Step 4: Simplify right side
    7,578.84x = 30,144,827.16
  5. Step 5: Solve for x
    x = 30,144,827.16/7,578.84
  6. Step 6: Final answer
    x = 3,977.50

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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.