Home / 7,756.35-10,703.98-4,219.78

Finding the Fourth Proportional to 7,756.35, 10,703.98 and 4,219.78

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Solution

The fourth proportional to 7,756.35, 10,703.98 and 4,219.78 is: 5,823.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,756.35 : 10,703.98 = 4,219.78 : x
  2. Step 2: Convert to fraction form
    7,756.35/10,703.98 = 4,219.78/x
  3. Step 3: Cross multiply
    7,756.35x = 10,703.98 × 4,219.78
  4. Step 4: Simplify right side
    7,756.35x = 45,168,440.72
  5. Step 5: Solve for x
    x = 45,168,440.72/7,756.35
  6. Step 6: Final answer
    x = 5,823.41

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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.