Home / 5,076.53-7,614.75-1,378.76

Finding the Fourth Proportional to 5,076.53, 7,614.75 and 1,378.76

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Solution

The fourth proportional to 5,076.53, 7,614.75 and 1,378.76 is: 2,068.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,076.53 : 7,614.75 = 1,378.76 : x
  2. Step 2: Convert to fraction form
    5,076.53/7,614.75 = 1,378.76/x
  3. Step 3: Cross multiply
    5,076.53x = 7,614.75 × 1,378.76
  4. Step 4: Simplify right side
    5,076.53x = 10,498,912.71
  5. Step 5: Solve for x
    x = 10,498,912.71/5,076.53
  6. Step 6: Final answer
    x = 2,068.13

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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.