Home / 5,625.40-7,706.67-5,415.06

Finding the Fourth Proportional to 5,625.40, 7,706.67 and 5,415.06

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Solution

The fourth proportional to 5,625.40, 7,706.67 and 5,415.06 is: 7,418.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,625.40 : 7,706.67 = 5,415.06 : x
  2. Step 2: Convert to fraction form
    5,625.40/7,706.67 = 5,415.06/x
  3. Step 3: Cross multiply
    5,625.40x = 7,706.67 × 5,415.06
  4. Step 4: Simplify right side
    5,625.40x = 41,732,080.45
  5. Step 5: Solve for x
    x = 41,732,080.45/5,625.40
  6. Step 6: Final answer
    x = 7,418.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.