Home / 7,135.64-9,847.04-4,151.28

Finding the Fourth Proportional to 7,135.64, 9,847.04 and 4,151.28

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Solution

The fourth proportional to 7,135.64, 9,847.04 and 4,151.28 is: 5,728.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,135.64 : 9,847.04 = 4,151.28 : x
  2. Step 2: Convert to fraction form
    7,135.64/9,847.04 = 4,151.28/x
  3. Step 3: Cross multiply
    7,135.64x = 9,847.04 × 4,151.28
  4. Step 4: Simplify right side
    7,135.64x = 40,877,820.21
  5. Step 5: Solve for x
    x = 40,877,820.21/7,135.64
  6. Step 6: Final answer
    x = 5,728.68

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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.