Home / 4,989.61-7,477.47-2,521.55

Finding the Fourth Proportional to 4,989.61, 7,477.47 and 2,521.55

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Solution

The fourth proportional to 4,989.61, 7,477.47 and 2,521.55 is: 3,778.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,989.61 : 7,477.47 = 2,521.55 : x
  2. Step 2: Convert to fraction form
    4,989.61/7,477.47 = 2,521.55/x
  3. Step 3: Cross multiply
    4,989.61x = 7,477.47 × 2,521.55
  4. Step 4: Simplify right side
    4,989.61x = 18,854,826.87
  5. Step 5: Solve for x
    x = 18,854,826.87/4,989.61
  6. Step 6: Final answer
    x = 3,778.82

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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.