Home / 5,248-7,242.24-2,890.14

Finding the Fourth Proportional to 5,248, 7,242.24 and 2,890.14

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Solution

The fourth proportional to 5,248, 7,242.24 and 2,890.14 is: 3,988.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,248 : 7,242.24 = 2,890.14 : x
  2. Step 2: Convert to fraction form
    5,248/7,242.24 = 2,890.14/x
  3. Step 3: Cross multiply
    5,248x = 7,242.24 × 2,890.14
  4. Step 4: Simplify right side
    5,248x = 20,931,087.51
  5. Step 5: Solve for x
    x = 20,931,087.51/5,248
  6. Step 6: Final answer
    x = 3,988.39

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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.