Home / 1,810.36-2,500.35-1,219.87

Finding the Fourth Proportional to 1,810.36, 2,500.35 and 1,219.87

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Solution

The fourth proportional to 1,810.36, 2,500.35 and 1,219.87 is: 1,684.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,810.36 : 2,500.35 = 1,219.87 : x
  2. Step 2: Convert to fraction form
    1,810.36/2,500.35 = 1,219.87/x
  3. Step 3: Cross multiply
    1,810.36x = 2,500.35 × 1,219.87
  4. Step 4: Simplify right side
    1,810.36x = 3,050,095.70
  5. Step 5: Solve for x
    x = 3,050,095.70/1,810.36
  6. Step 6: Final answer
    x = 1,684.80

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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.