Home / 7,357.02-10,152.78-3,999.87

Finding the Fourth Proportional to 7,357.02, 10,152.78 and 3,999.87

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Solution

The fourth proportional to 7,357.02, 10,152.78 and 3,999.87 is: 5,519.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,357.02 : 10,152.78 = 3,999.87 : x
  2. Step 2: Convert to fraction form
    7,357.02/10,152.78 = 3,999.87/x
  3. Step 3: Cross multiply
    7,357.02x = 10,152.78 × 3,999.87
  4. Step 4: Simplify right side
    7,357.02x = 40,609,800.14
  5. Step 5: Solve for x
    x = 40,609,800.14/7,357.02
  6. Step 6: Final answer
    x = 5,519.87

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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.