Home / 4,720.17-7,080.09-1,210.21

Finding the Fourth Proportional to 4,720.17, 7,080.09 and 1,210.21

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Solution

The fourth proportional to 4,720.17, 7,080.09 and 1,210.21 is: 1,815.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,720.17 : 7,080.09 = 1,210.21 : x
  2. Step 2: Convert to fraction form
    4,720.17/7,080.09 = 1,210.21/x
  3. Step 3: Cross multiply
    4,720.17x = 7,080.09 × 1,210.21
  4. Step 4: Simplify right side
    4,720.17x = 8,568,360.32
  5. Step 5: Solve for x
    x = 8,568,360.32/4,720.17
  6. Step 6: Final answer
    x = 1,815.27

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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.