Home / 4,989.65-7,484.47-3,424.90

Finding the Fourth Proportional to 4,989.65, 7,484.47 and 3,424.90

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Solution

The fourth proportional to 4,989.65, 7,484.47 and 3,424.90 is: 5,137.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,989.65 : 7,484.47 = 3,424.90 : x
  2. Step 2: Convert to fraction form
    4,989.65/7,484.47 = 3,424.90/x
  3. Step 3: Cross multiply
    4,989.65x = 7,484.47 × 3,424.90
  4. Step 4: Simplify right side
    4,989.65x = 25,633,576.13
  5. Step 5: Solve for x
    x = 25,633,576.13/4,989.65
  6. Step 6: Final answer
    x = 5,137.35

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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.