Home / 5,653.05-7,800.45-3,135.03

Finding the Fourth Proportional to 5,653.05, 7,800.45 and 3,135.03

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Solution

The fourth proportional to 5,653.05, 7,800.45 and 3,135.03 is: 4,325.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,653.05 : 7,800.45 = 3,135.03 : x
  2. Step 2: Convert to fraction form
    5,653.05/7,800.45 = 3,135.03/x
  3. Step 3: Cross multiply
    5,653.05x = 7,800.45 × 3,135.03
  4. Step 4: Simplify right side
    5,653.05x = 24,454,644.76
  5. Step 5: Solve for x
    x = 24,454,644.76/5,653.05
  6. Step 6: Final answer
    x = 4,325.92

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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.