Home / 7,931.72-11,898.12-2,088.32

Finding the Fourth Proportional to 7,931.72, 11,898.12 and 2,088.32

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Solution

The fourth proportional to 7,931.72, 11,898.12 and 2,088.32 is: 3,132.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,931.72 : 11,898.12 = 2,088.32 : x
  2. Step 2: Convert to fraction form
    7,931.72/11,898.12 = 2,088.32/x
  3. Step 3: Cross multiply
    7,931.72x = 11,898.12 × 2,088.32
  4. Step 4: Simplify right side
    7,931.72x = 24,847,081.96
  5. Step 5: Solve for x
    x = 24,847,081.96/7,931.72
  6. Step 6: Final answer
    x = 3,132.62

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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.