Home / 5,162.21-7,123.84-2,804.35

Finding the Fourth Proportional to 5,162.21, 7,123.84 and 2,804.35

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Solution

The fourth proportional to 5,162.21, 7,123.84 and 2,804.35 is: 3,870.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,162.21 : 7,123.84 = 2,804.35 : x
  2. Step 2: Convert to fraction form
    5,162.21/7,123.84 = 2,804.35/x
  3. Step 3: Cross multiply
    5,162.21x = 7,123.84 × 2,804.35
  4. Step 4: Simplify right side
    5,162.21x = 19,977,726.68
  5. Step 5: Solve for x
    x = 19,977,726.68/5,162.21
  6. Step 6: Final answer
    x = 3,870.00

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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.