Home / 3,386.14-4,671.39-1,988.26

Finding the Fourth Proportional to 3,386.14, 4,671.39 and 1,988.26

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Solution

The fourth proportional to 3,386.14, 4,671.39 and 1,988.26 is: 2,742.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,386.14 : 4,671.39 = 1,988.26 : x
  2. Step 2: Convert to fraction form
    3,386.14/4,671.39 = 1,988.26/x
  3. Step 3: Cross multiply
    3,386.14x = 4,671.39 × 1,988.26
  4. Step 4: Simplify right side
    3,386.14x = 9,287,937.88
  5. Step 5: Solve for x
    x = 9,287,937.88/3,386.14
  6. Step 6: Final answer
    x = 2,742.93

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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.