Home / 3,314.81-4,574.56-1,988.26

Finding the Fourth Proportional to 3,314.81, 4,574.56 and 1,988.26

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Solution

The fourth proportional to 3,314.81, 4,574.56 and 1,988.26 is: 2,743.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,314.81 : 4,574.56 = 1,988.26 : x
  2. Step 2: Convert to fraction form
    3,314.81/4,574.56 = 1,988.26/x
  3. Step 3: Cross multiply
    3,314.81x = 4,574.56 × 1,988.26
  4. Step 4: Simplify right side
    3,314.81x = 9,095,414.67
  5. Step 5: Solve for x
    x = 9,095,414.67/3,314.81
  6. Step 6: Final answer
    x = 2,743.87

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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.