Home / 3,625.07-5,433.78-1,430.78

Finding the Fourth Proportional to 3,625.07, 5,433.78 and 1,430.78

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Solution

The fourth proportional to 3,625.07, 5,433.78 and 1,430.78 is: 2,144.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,625.07 : 5,433.78 = 1,430.78 : x
  2. Step 2: Convert to fraction form
    3,625.07/5,433.78 = 1,430.78/x
  3. Step 3: Cross multiply
    3,625.07x = 5,433.78 × 1,430.78
  4. Step 4: Simplify right side
    3,625.07x = 7,774,543.75
  5. Step 5: Solve for x
    x = 7,774,543.75/3,625.07
  6. Step 6: Final answer
    x = 2,144.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.