Home / 4,812.02-7,218.10-1,891.70

Finding the Fourth Proportional to 4,812.02, 7,218.10 and 1,891.70

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Solution

The fourth proportional to 4,812.02, 7,218.10 and 1,891.70 is: 2,837.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,812.02 : 7,218.10 = 1,891.70 : x
  2. Step 2: Convert to fraction form
    4,812.02/7,218.10 = 1,891.70/x
  3. Step 3: Cross multiply
    4,812.02x = 7,218.10 × 1,891.70
  4. Step 4: Simplify right side
    4,812.02x = 13,654,479.77
  5. Step 5: Solve for x
    x = 13,654,479.77/4,812.02
  6. Step 6: Final answer
    x = 2,837.58

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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.