Home / 1,511.95-2,082.58-1,069.09

Finding the Fourth Proportional to 1,511.95, 2,082.58 and 1,069.09

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Solution

The fourth proportional to 1,511.95, 2,082.58 and 1,069.09 is: 1,472.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,511.95 : 2,082.58 = 1,069.09 : x
  2. Step 2: Convert to fraction form
    1,511.95/2,082.58 = 1,069.09/x
  3. Step 3: Cross multiply
    1,511.95x = 2,082.58 × 1,069.09
  4. Step 4: Simplify right side
    1,511.95x = 2,226,465.45
  5. Step 5: Solve for x
    x = 2,226,465.45/1,511.95
  6. Step 6: Final answer
    x = 1,472.58

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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.