Home / 1,715.39-2,566.94-1,485.08

Finding the Fourth Proportional to 1,715.39, 2,566.94 and 1,485.08

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Solution

The fourth proportional to 1,715.39, 2,566.94 and 1,485.08 is: 2,222.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,715.39 : 2,566.94 = 1,485.08 : x
  2. Step 2: Convert to fraction form
    1,715.39/2,566.94 = 1,485.08/x
  3. Step 3: Cross multiply
    1,715.39x = 2,566.94 × 1,485.08
  4. Step 4: Simplify right side
    1,715.39x = 3,812,101.76
  5. Step 5: Solve for x
    x = 3,812,101.76/1,715.39
  6. Step 6: Final answer
    x = 2,222.29

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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.