Home / 5,142.18-7,741.35-3,509.07

Finding the Fourth Proportional to 5,142.18, 7,741.35 and 3,509.07

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Solution

The fourth proportional to 5,142.18, 7,741.35 and 3,509.07 is: 5,282.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,142.18 : 7,741.35 = 3,509.07 : x
  2. Step 2: Convert to fraction form
    5,142.18/7,741.35 = 3,509.07/x
  3. Step 3: Cross multiply
    5,142.18x = 7,741.35 × 3,509.07
  4. Step 4: Simplify right side
    5,142.18x = 27,164,939.04
  5. Step 5: Solve for x
    x = 27,164,939.04/5,142.18
  6. Step 6: Final answer
    x = 5,282.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.