Home / 1,907.19-2,631.15-1,160.55

Finding the Fourth Proportional to 1,907.19, 2,631.15 and 1,160.55

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Solution

The fourth proportional to 1,907.19, 2,631.15 and 1,160.55 is: 1,601.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,907.19 : 2,631.15 = 1,160.55 : x
  2. Step 2: Convert to fraction form
    1,907.19/2,631.15 = 1,160.55/x
  3. Step 3: Cross multiply
    1,907.19x = 2,631.15 × 1,160.55
  4. Step 4: Simplify right side
    1,907.19x = 3,053,581.13
  5. Step 5: Solve for x
    x = 3,053,581.13/1,907.19
  6. Step 6: Final answer
    x = 1,601.09

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1.5x scale

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.