Home / 3,531.09-4,872.12-2,038.91

Finding the Fourth Proportional to 3,531.09, 4,872.12 and 2,038.91

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Solution

The fourth proportional to 3,531.09, 4,872.12 and 2,038.91 is: 2,813.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,531.09 : 4,872.12 = 2,038.91 : x
  2. Step 2: Convert to fraction form
    3,531.09/4,872.12 = 2,038.91/x
  3. Step 3: Cross multiply
    3,531.09x = 4,872.12 × 2,038.91
  4. Step 4: Simplify right side
    3,531.09x = 9,933,814.19
  5. Step 5: Solve for x
    x = 9,933,814.19/3,531.09
  6. Step 6: Final answer
    x = 2,813.24

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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.