Home / 1,907.87-2,862.65-1,214.35

Finding the Fourth Proportional to 1,907.87, 2,862.65 and 1,214.35

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Solution

The fourth proportional to 1,907.87, 2,862.65 and 1,214.35 is: 1,822.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,907.87 : 2,862.65 = 1,214.35 : x
  2. Step 2: Convert to fraction form
    1,907.87/2,862.65 = 1,214.35/x
  3. Step 3: Cross multiply
    1,907.87x = 2,862.65 × 1,214.35
  4. Step 4: Simplify right side
    1,907.87x = 3,476,254.91
  5. Step 5: Solve for x
    x = 3,476,254.91/1,907.87
  6. Step 6: Final answer
    x = 1,822.07

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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.