Home / 5,246.07-7,860.90-2,780.22

Finding the Fourth Proportional to 5,246.07, 7,860.90 and 2,780.22

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Solution

The fourth proportional to 5,246.07, 7,860.90 and 2,780.22 is: 4,165.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,246.07 : 7,860.90 = 2,780.22 : x
  2. Step 2: Convert to fraction form
    5,246.07/7,860.90 = 2,780.22/x
  3. Step 3: Cross multiply
    5,246.07x = 7,860.90 × 2,780.22
  4. Step 4: Simplify right side
    5,246.07x = 21,855,055.66
  5. Step 5: Solve for x
    x = 21,855,055.66/5,246.07
  6. Step 6: Final answer
    x = 4,165.99

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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.