Home / 5,370.14-7,406.40-3,782.06

Finding the Fourth Proportional to 5,370.14, 7,406.40 and 3,782.06

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Solution

The fourth proportional to 5,370.14, 7,406.40 and 3,782.06 is: 5,216.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,370.14 : 7,406.40 = 3,782.06 : x
  2. Step 2: Convert to fraction form
    5,370.14/7,406.40 = 3,782.06/x
  3. Step 3: Cross multiply
    5,370.14x = 7,406.40 × 3,782.06
  4. Step 4: Simplify right side
    5,370.14x = 28,011,454.11
  5. Step 5: Solve for x
    x = 28,011,454.11/5,370.14
  6. Step 6: Final answer
    x = 5,216.15

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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.