Home / 4,727.60-7,088.98-2,129.12

Finding the Fourth Proportional to 4,727.60, 7,088.98 and 2,129.12

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Solution

The fourth proportional to 4,727.60, 7,088.98 and 2,129.12 is: 3,192.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,727.60 : 7,088.98 = 2,129.12 : x
  2. Step 2: Convert to fraction form
    4,727.60/7,088.98 = 2,129.12/x
  3. Step 3: Cross multiply
    4,727.60x = 7,088.98 × 2,129.12
  4. Step 4: Simplify right side
    4,727.60x = 15,093,289.10
  5. Step 5: Solve for x
    x = 15,093,289.10/4,727.60
  6. Step 6: Final answer
    x = 3,192.59

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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.