Home / 5,656.80-7,806.47-3,418.37

Finding the Fourth Proportional to 5,656.80, 7,806.47 and 3,418.37

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Solution

The fourth proportional to 5,656.80, 7,806.47 and 3,418.37 is: 4,717.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,656.80 : 7,806.47 = 3,418.37 : x
  2. Step 2: Convert to fraction form
    5,656.80/7,806.47 = 3,418.37/x
  3. Step 3: Cross multiply
    5,656.80x = 7,806.47 × 3,418.37
  4. Step 4: Simplify right side
    5,656.80x = 26,685,402.85
  5. Step 5: Solve for x
    x = 26,685,402.85/5,656.80
  6. Step 6: Final answer
    x = 4,717.40

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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.