Home / 5,461.80-7,531.32-3,690.33

Finding the Fourth Proportional to 5,461.80, 7,531.32 and 3,690.33

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Solution

The fourth proportional to 5,461.80, 7,531.32 and 3,690.33 is: 5,088.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,461.80 : 7,531.32 = 3,690.33 : x
  2. Step 2: Convert to fraction form
    5,461.80/7,531.32 = 3,690.33/x
  3. Step 3: Cross multiply
    5,461.80x = 7,531.32 × 3,690.33
  4. Step 4: Simplify right side
    5,461.80x = 27,793,056.14
  5. Step 5: Solve for x
    x = 27,793,056.14/5,461.80
  6. Step 6: Final answer
    x = 5,088.63

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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.