Home / 5,031.56-6,949.86-3,866.78

Finding the Fourth Proportional to 5,031.56, 6,949.86 and 3,866.78

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Solution

The fourth proportional to 5,031.56, 6,949.86 and 3,866.78 is: 5,341.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,031.56 : 6,949.86 = 3,866.78 : x
  2. Step 2: Convert to fraction form
    5,031.56/6,949.86 = 3,866.78/x
  3. Step 3: Cross multiply
    5,031.56x = 6,949.86 × 3,866.78
  4. Step 4: Simplify right side
    5,031.56x = 26,873,579.65
  5. Step 5: Solve for x
    x = 26,873,579.65/5,031.56
  6. Step 6: Final answer
    x = 5,341.00

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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.