Home / 7,438.10-10,271.52-4,790.12

Finding the Fourth Proportional to 7,438.10, 10,271.52 and 4,790.12

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Solution

The fourth proportional to 7,438.10, 10,271.52 and 4,790.12 is: 6,614.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,438.10 : 10,271.52 = 4,790.12 : x
  2. Step 2: Convert to fraction form
    7,438.10/10,271.52 = 4,790.12/x
  3. Step 3: Cross multiply
    7,438.10x = 10,271.52 × 4,790.12
  4. Step 4: Simplify right side
    7,438.10x = 49,201,813.38
  5. Step 5: Solve for x
    x = 49,201,813.38/7,438.10
  6. Step 6: Final answer
    x = 6,614.84

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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.