Home / 7,712.87-10,644.81-4,438.55

Finding the Fourth Proportional to 7,712.87, 10,644.81 and 4,438.55

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Solution

The fourth proportional to 7,712.87, 10,644.81 and 4,438.55 is: 6,125.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,712.87 : 10,644.81 = 4,438.55 : x
  2. Step 2: Convert to fraction form
    7,712.87/10,644.81 = 4,438.55/x
  3. Step 3: Cross multiply
    7,712.87x = 10,644.81 × 4,438.55
  4. Step 4: Simplify right side
    7,712.87x = 47,247,492.07
  5. Step 5: Solve for x
    x = 47,247,492.07/7,712.87
  6. Step 6: Final answer
    x = 6,125.80

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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.