Home / 4,715.65-7,073.46-1,428.74

Finding the Fourth Proportional to 4,715.65, 7,073.46 and 1,428.74

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Solution

The fourth proportional to 4,715.65, 7,073.46 and 1,428.74 is: 2,143.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,715.65 : 7,073.46 = 1,428.74 : x
  2. Step 2: Convert to fraction form
    4,715.65/7,073.46 = 1,428.74/x
  3. Step 3: Cross multiply
    4,715.65x = 7,073.46 × 1,428.74
  4. Step 4: Simplify right side
    4,715.65x = 10,106,126.40
  5. Step 5: Solve for x
    x = 10,106,126.40/4,715.65
  6. Step 6: Final answer
    x = 2,143.10

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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.