Home / 9,170.80-13,756.96-2,931.72

Finding the Fourth Proportional to 9,170.80, 13,756.96 and 2,931.72

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Solution

The fourth proportional to 9,170.80, 13,756.96 and 2,931.72 is: 4,397.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,170.80 : 13,756.96 = 2,931.72 : x
  2. Step 2: Convert to fraction form
    9,170.80/13,756.96 = 2,931.72/x
  3. Step 3: Cross multiply
    9,170.80x = 13,756.96 × 2,931.72
  4. Step 4: Simplify right side
    9,170.80x = 40,331,554.77
  5. Step 5: Solve for x
    x = 40,331,554.77/9,170.80
  6. Step 6: Final answer
    x = 4,397.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.