Home / 3,603.51-4,971.69-2,111.40

Finding the Fourth Proportional to 3,603.51, 4,971.69 and 2,111.40

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Solution

The fourth proportional to 3,603.51, 4,971.69 and 2,111.40 is: 2,913.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,603.51 : 4,971.69 = 2,111.40 : x
  2. Step 2: Convert to fraction form
    3,603.51/4,971.69 = 2,111.40/x
  3. Step 3: Cross multiply
    3,603.51x = 4,971.69 × 2,111.40
  4. Step 4: Simplify right side
    3,603.51x = 10,497,226.27
  5. Step 5: Solve for x
    x = 10,497,226.27/3,603.51
  6. Step 6: Final answer
    x = 2,913.06

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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.