Home / 3,139.69-4,332.96-1,795.72

Finding the Fourth Proportional to 3,139.69, 4,332.96 and 1,795.72

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Solution

The fourth proportional to 3,139.69, 4,332.96 and 1,795.72 is: 2,478.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,139.69 : 4,332.96 = 1,795.72 : x
  2. Step 2: Convert to fraction form
    3,139.69/4,332.96 = 1,795.72/x
  3. Step 3: Cross multiply
    3,139.69x = 4,332.96 × 1,795.72
  4. Step 4: Simplify right side
    3,139.69x = 7,780,782.93
  5. Step 5: Solve for x
    x = 7,780,782.93/3,139.69
  6. Step 6: Final answer
    x = 2,478.20

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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.