Home / 3,124.93-4,312.41-1,708.65

Finding the Fourth Proportional to 3,124.93, 4,312.41 and 1,708.65

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Solution

The fourth proportional to 3,124.93, 4,312.41 and 1,708.65 is: 2,357.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,124.93 : 4,312.41 = 1,708.65 : x
  2. Step 2: Convert to fraction form
    3,124.93/4,312.41 = 1,708.65/x
  3. Step 3: Cross multiply
    3,124.93x = 4,312.41 × 1,708.65
  4. Step 4: Simplify right side
    3,124.93x = 7,368,399.35
  5. Step 5: Solve for x
    x = 7,368,399.35/3,124.93
  6. Step 6: Final answer
    x = 2,357.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.