Home / 7,780.45-10,737.18-4,423.39

Finding the Fourth Proportional to 7,780.45, 10,737.18 and 4,423.39

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Solution

The fourth proportional to 7,780.45, 10,737.18 and 4,423.39 is: 6,104.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,780.45 : 10,737.18 = 4,423.39 : x
  2. Step 2: Convert to fraction form
    7,780.45/10,737.18 = 4,423.39/x
  3. Step 3: Cross multiply
    7,780.45x = 10,737.18 × 4,423.39
  4. Step 4: Simplify right side
    7,780.45x = 47,494,734.64
  5. Step 5: Solve for x
    x = 47,494,734.64/7,780.45
  6. Step 6: Final answer
    x = 6,104.37

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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.