Home / 4,608.51-6,912.78-1,320.84

Finding the Fourth Proportional to 4,608.51, 6,912.78 and 1,320.84

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Solution

The fourth proportional to 4,608.51, 6,912.78 and 1,320.84 is: 1,981.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,608.51 : 6,912.78 = 1,320.84 : x
  2. Step 2: Convert to fraction form
    4,608.51/6,912.78 = 1,320.84/x
  3. Step 3: Cross multiply
    4,608.51x = 6,912.78 × 1,320.84
  4. Step 4: Simplify right side
    4,608.51x = 9,130,671.38
  5. Step 5: Solve for x
    x = 9,130,671.38/4,608.51
  6. Step 6: Final answer
    x = 1,981.26

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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.