Home / 5,656.40-7,806.74-3,418.58

Finding the Fourth Proportional to 5,656.40, 7,806.74 and 3,418.58

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Solution

The fourth proportional to 5,656.40, 7,806.74 and 3,418.58 is: 4,718.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,656.40 : 7,806.74 = 3,418.58 : x
  2. Step 2: Convert to fraction form
    5,656.40/7,806.74 = 3,418.58/x
  3. Step 3: Cross multiply
    5,656.40x = 7,806.74 × 3,418.58
  4. Step 4: Simplify right side
    5,656.40x = 26,687,909.10
  5. Step 5: Solve for x
    x = 26,687,909.10/5,656.40
  6. Step 6: Final answer
    x = 4,718.18

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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.