Home / 4,989.84-7,485.74-1,479.92

Finding the Fourth Proportional to 4,989.84, 7,485.74 and 1,479.92

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Solution

The fourth proportional to 4,989.84, 7,485.74 and 1,479.92 is: 2,220.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,989.84 : 7,485.74 = 1,479.92 : x
  2. Step 2: Convert to fraction form
    4,989.84/7,485.74 = 1,479.92/x
  3. Step 3: Cross multiply
    4,989.84x = 7,485.74 × 1,479.92
  4. Step 4: Simplify right side
    4,989.84x = 11,078,296.34
  5. Step 5: Solve for x
    x = 11,078,296.34/4,989.84
  6. Step 6: Final answer
    x = 2,220.17

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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.