Home / 5,509.08-7,602.42-2,991.12

Finding the Fourth Proportional to 5,509.08, 7,602.42 and 2,991.12

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Solution

The fourth proportional to 5,509.08, 7,602.42 and 2,991.12 is: 4,127.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,509.08 : 7,602.42 = 2,991.12 : x
  2. Step 2: Convert to fraction form
    5,509.08/7,602.42 = 2,991.12/x
  3. Step 3: Cross multiply
    5,509.08x = 7,602.42 × 2,991.12
  4. Step 4: Simplify right side
    5,509.08x = 22,739,750.51
  5. Step 5: Solve for x
    x = 22,739,750.51/5,509.08
  6. Step 6: Final answer
    x = 4,127.69

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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.