Home / 5,656.84-7,806.44-3,139.34

Finding the Fourth Proportional to 5,656.84, 7,806.44 and 3,139.34

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Solution

The fourth proportional to 5,656.84, 7,806.44 and 3,139.34 is: 4,332.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,656.84 : 7,806.44 = 3,139.34 : x
  2. Step 2: Convert to fraction form
    5,656.84/7,806.44 = 3,139.34/x
  3. Step 3: Cross multiply
    5,656.84x = 7,806.44 × 3,139.34
  4. Step 4: Simplify right side
    5,656.84x = 24,507,069.35
  5. Step 5: Solve for x
    x = 24,507,069.35/5,656.84
  6. Step 6: Final answer
    x = 4,332.29

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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.