Home / 1,210.28-1,803.41-1,151.51

Finding the Fourth Proportional to 1,210.28, 1,803.41 and 1,151.51

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Solution

The fourth proportional to 1,210.28, 1,803.41 and 1,151.51 is: 1,715.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210.28 : 1,803.41 = 1,151.51 : x
  2. Step 2: Convert to fraction form
    1,210.28/1,803.41 = 1,151.51/x
  3. Step 3: Cross multiply
    1,210.28x = 1,803.41 × 1,151.51
  4. Step 4: Simplify right side
    1,210.28x = 2,076,629.87
  5. Step 5: Solve for x
    x = 2,076,629.87/1,210.28
  6. Step 6: Final answer
    x = 1,715.83

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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.