Home / 1,342.28-2,011.60-1,012.95

Finding the Fourth Proportional to 1,342.28, 2,011.60 and 1,012.95

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Solution

The fourth proportional to 1,342.28, 2,011.60 and 1,012.95 is: 1,518.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,342.28 : 2,011.60 = 1,012.95 : x
  2. Step 2: Convert to fraction form
    1,342.28/2,011.60 = 1,012.95/x
  3. Step 3: Cross multiply
    1,342.28x = 2,011.60 × 1,012.95
  4. Step 4: Simplify right side
    1,342.28x = 2,037,637.24
  5. Step 5: Solve for x
    x = 2,037,637.24/1,342.28
  6. Step 6: Final answer
    x = 1,518.04

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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.