Home / 5,726.16-7,902.12-3,208.40

Finding the Fourth Proportional to 5,726.16, 7,902.12 and 3,208.40

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Solution

The fourth proportional to 5,726.16, 7,902.12 and 3,208.40 is: 4,427.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,726.16 : 7,902.12 = 3,208.40 : x
  2. Step 2: Convert to fraction form
    5,726.16/7,902.12 = 3,208.40/x
  3. Step 3: Cross multiply
    5,726.16x = 7,902.12 × 3,208.40
  4. Step 4: Simplify right side
    5,726.16x = 25,353,161.81
  5. Step 5: Solve for x
    x = 25,353,161.81/5,726.16
  6. Step 6: Final answer
    x = 4,427.60

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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.