Home / 5,412.96-8,130.24-5,107.32

Finding the Fourth Proportional to 5,412.96, 8,130.24 and 5,107.32

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Solution

The fourth proportional to 5,412.96, 8,130.24 and 5,107.32 is: 7,671.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,412.96 : 8,130.24 = 5,107.32 : x
  2. Step 2: Convert to fraction form
    5,412.96/8,130.24 = 5,107.32/x
  3. Step 3: Cross multiply
    5,412.96x = 8,130.24 × 5,107.32
  4. Step 4: Simplify right side
    5,412.96x = 41,523,737.36
  5. Step 5: Solve for x
    x = 41,523,737.36/5,412.96
  6. Step 6: Final answer
    x = 7,671.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.