Home / 3,718.81-5,130.34-2,302.12

Finding the Fourth Proportional to 3,718.81, 5,130.34 and 2,302.12

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Solution

The fourth proportional to 3,718.81, 5,130.34 and 2,302.12 is: 3,175.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,718.81 : 5,130.34 = 2,302.12 : x
  2. Step 2: Convert to fraction form
    3,718.81/5,130.34 = 2,302.12/x
  3. Step 3: Cross multiply
    3,718.81x = 5,130.34 × 2,302.12
  4. Step 4: Simplify right side
    3,718.81x = 11,810,658.98
  5. Step 5: Solve for x
    x = 11,810,658.98/3,718.81
  6. Step 6: Final answer
    x = 3,175.92

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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.