Home / 5,113.60-7,051.52-3,621.12

Finding the Fourth Proportional to 5,113.60, 7,051.52 and 3,621.12

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Solution

The fourth proportional to 5,113.60, 7,051.52 and 3,621.12 is: 4,993.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,113.60 : 7,051.52 = 3,621.12 : x
  2. Step 2: Convert to fraction form
    5,113.60/7,051.52 = 3,621.12/x
  3. Step 3: Cross multiply
    5,113.60x = 7,051.52 × 3,621.12
  4. Step 4: Simplify right side
    5,113.60x = 25,534,400.10
  5. Step 5: Solve for x
    x = 25,534,400.10/5,113.60
  6. Step 6: Final answer
    x = 4,993.43

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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.