Home / 1,707.93-2,555.79-1,239.94

Finding the Fourth Proportional to 1,707.93, 2,555.79 and 1,239.94

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Solution

The fourth proportional to 1,707.93, 2,555.79 and 1,239.94 is: 1,855.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,707.93 : 2,555.79 = 1,239.94 : x
  2. Step 2: Convert to fraction form
    1,707.93/2,555.79 = 1,239.94/x
  3. Step 3: Cross multiply
    1,707.93x = 2,555.79 × 1,239.94
  4. Step 4: Simplify right side
    1,707.93x = 3,169,034.10
  5. Step 5: Solve for x
    x = 3,169,034.10/1,707.93
  6. Step 6: Final answer
    x = 1,855.49

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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.