Home / 1,807.24-2,495.28-1,218.84

Finding the Fourth Proportional to 1,807.24, 2,495.28 and 1,218.84

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Solution

The fourth proportional to 1,807.24, 2,495.28 and 1,218.84 is: 1,682.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,807.24 : 2,495.28 = 1,218.84 : x
  2. Step 2: Convert to fraction form
    1,807.24/2,495.28 = 1,218.84/x
  3. Step 3: Cross multiply
    1,807.24x = 2,495.28 × 1,218.84
  4. Step 4: Simplify right side
    1,807.24x = 3,041,347.08
  5. Step 5: Solve for x
    x = 3,041,347.08/1,807.24
  6. Step 6: Final answer
    x = 1,682.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.