Home / 7,576.65-10,455.03-4,219.78

Finding the Fourth Proportional to 7,576.65, 10,455.03 and 4,219.78

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Solution

The fourth proportional to 7,576.65, 10,455.03 and 4,219.78 is: 5,822.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,576.65 : 10,455.03 = 4,219.78 : x
  2. Step 2: Convert to fraction form
    7,576.65/10,455.03 = 4,219.78/x
  3. Step 3: Cross multiply
    7,576.65x = 10,455.03 × 4,219.78
  4. Step 4: Simplify right side
    7,576.65x = 44,117,955.43
  5. Step 5: Solve for x
    x = 44,117,955.43/7,576.65
  6. Step 6: Final answer
    x = 5,822.88

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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.