Home / 4,139.40-5,711.08-2,370.68

Finding the Fourth Proportional to 4,139.40, 5,711.08 and 2,370.68

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Solution

The fourth proportional to 4,139.40, 5,711.08 and 2,370.68 is: 3,270.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,139.40 : 5,711.08 = 2,370.68 : x
  2. Step 2: Convert to fraction form
    4,139.40/5,711.08 = 2,370.68/x
  3. Step 3: Cross multiply
    4,139.40x = 5,711.08 × 2,370.68
  4. Step 4: Simplify right side
    4,139.40x = 13,539,143.13
  5. Step 5: Solve for x
    x = 13,539,143.13/4,139.40
  6. Step 6: Final answer
    x = 3,270.80

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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.