Home / 1,395.02-2,080.36-1,222.49

Finding the Fourth Proportional to 1,395.02, 2,080.36 and 1,222.49

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Solution

The fourth proportional to 1,395.02, 2,080.36 and 1,222.49 is: 1,823.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,395.02 : 2,080.36 = 1,222.49 : x
  2. Step 2: Convert to fraction form
    1,395.02/2,080.36 = 1,222.49/x
  3. Step 3: Cross multiply
    1,395.02x = 2,080.36 × 1,222.49
  4. Step 4: Simplify right side
    1,395.02x = 2,543,213.18
  5. Step 5: Solve for x
    x = 2,543,213.18/1,395.02
  6. Step 6: Final answer
    x = 1,823.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.