Home / 7,236.45-9,985.95-4,092.57

Finding the Fourth Proportional to 7,236.45, 9,985.95 and 4,092.57

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Solution

The fourth proportional to 7,236.45, 9,985.95 and 4,092.57 is: 5,647.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,236.45 : 9,985.95 = 4,092.57 : x
  2. Step 2: Convert to fraction form
    7,236.45/9,985.95 = 4,092.57/x
  3. Step 3: Cross multiply
    7,236.45x = 9,985.95 × 4,092.57
  4. Step 4: Simplify right side
    7,236.45x = 40,868,199.39
  5. Step 5: Solve for x
    x = 40,868,199.39/7,236.45
  6. Step 6: Final answer
    x = 5,647.55

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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.