Home / 4,720.47-7,080.60-1,210.44

Finding the Fourth Proportional to 4,720.47, 7,080.60 and 1,210.44

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Solution

The fourth proportional to 4,720.47, 7,080.60 and 1,210.44 is: 1,815.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,720.47 : 7,080.60 = 1,210.44 : x
  2. Step 2: Convert to fraction form
    4,720.47/7,080.60 = 1,210.44/x
  3. Step 3: Cross multiply
    4,720.47x = 7,080.60 × 1,210.44
  4. Step 4: Simplify right side
    4,720.47x = 8,570,641.46
  5. Step 5: Solve for x
    x = 8,570,641.46/4,720.47
  6. Step 6: Final answer
    x = 1,815.63

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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.