Home / 1,535.17-2,299.59-1,274.56

Finding the Fourth Proportional to 1,535.17, 2,299.59 and 1,274.56

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Solution

The fourth proportional to 1,535.17, 2,299.59 and 1,274.56 is: 1,909.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,535.17 : 2,299.59 = 1,274.56 : x
  2. Step 2: Convert to fraction form
    1,535.17/2,299.59 = 1,274.56/x
  3. Step 3: Cross multiply
    1,535.17x = 2,299.59 × 1,274.56
  4. Step 4: Simplify right side
    1,535.17x = 2,930,965.43
  5. Step 5: Solve for x
    x = 2,930,965.43/1,535.17
  6. Step 6: Final answer
    x = 1,909.21

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1.5x scale

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.