Home / 3,837.39-5,756.90-1,240.13

Finding the Fourth Proportional to 3,837.39, 5,756.90 and 1,240.13

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Solution

The fourth proportional to 3,837.39, 5,756.90 and 1,240.13 is: 1,860.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,837.39 : 5,756.90 = 1,240.13 : x
  2. Step 2: Convert to fraction form
    3,837.39/5,756.90 = 1,240.13/x
  3. Step 3: Cross multiply
    3,837.39x = 5,756.90 × 1,240.13
  4. Step 4: Simplify right side
    3,837.39x = 7,139,269.41
  5. Step 5: Solve for x
    x = 7,139,269.41/3,837.39
  6. Step 6: Final answer
    x = 1,860.45

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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.