Home / 7,538.39-10,405.39-4,395.19

Finding the Fourth Proportional to 7,538.39, 10,405.39 and 4,395.19

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Solution

The fourth proportional to 7,538.39, 10,405.39 and 4,395.19 is: 6,066.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,538.39 : 10,405.39 = 4,395.19 : x
  2. Step 2: Convert to fraction form
    7,538.39/10,405.39 = 4,395.19/x
  3. Step 3: Cross multiply
    7,538.39x = 10,405.39 × 4,395.19
  4. Step 4: Simplify right side
    7,538.39x = 45,733,615.20
  5. Step 5: Solve for x
    x = 45,733,615.20/7,538.39
  6. Step 6: Final answer
    x = 6,066.76

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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.