Home / 5,653.68-7,802.45-3,135.90

Finding the Fourth Proportional to 5,653.68, 7,802.45 and 3,135.90

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Solution

The fourth proportional to 5,653.68, 7,802.45 and 3,135.90 is: 4,327.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,653.68 : 7,802.45 = 3,135.90 : x
  2. Step 2: Convert to fraction form
    5,653.68/7,802.45 = 3,135.90/x
  3. Step 3: Cross multiply
    5,653.68x = 7,802.45 × 3,135.90
  4. Step 4: Simplify right side
    5,653.68x = 24,467,702.96
  5. Step 5: Solve for x
    x = 24,467,702.96/5,653.68
  6. Step 6: Final answer
    x = 4,327.75

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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.