Home / 4,720.88-7,081.12-1,210.86

Finding the Fourth Proportional to 4,720.88, 7,081.12 and 1,210.86

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Solution

The fourth proportional to 4,720.88, 7,081.12 and 1,210.86 is: 1,816.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,720.88 : 7,081.12 = 1,210.86 : x
  2. Step 2: Convert to fraction form
    4,720.88/7,081.12 = 1,210.86/x
  3. Step 3: Cross multiply
    4,720.88x = 7,081.12 × 1,210.86
  4. Step 4: Simplify right side
    4,720.88x = 8,574,244.96
  5. Step 5: Solve for x
    x = 8,574,244.96/4,720.88
  6. Step 6: Final answer
    x = 1,816.24

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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.