Home / 3,112.81-4,295.55-1,696.47

Finding the Fourth Proportional to 3,112.81, 4,295.55 and 1,696.47

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Solution

The fourth proportional to 3,112.81, 4,295.55 and 1,696.47 is: 2,341.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,112.81 : 4,295.55 = 1,696.47 : x
  2. Step 2: Convert to fraction form
    3,112.81/4,295.55 = 1,696.47/x
  3. Step 3: Cross multiply
    3,112.81x = 4,295.55 × 1,696.47
  4. Step 4: Simplify right side
    3,112.81x = 7,287,271.71
  5. Step 5: Solve for x
    x = 7,287,271.71/3,112.81
  6. Step 6: Final answer
    x = 2,341.06

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1.5x scale

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.