Home / 1,515.95-2,277.37-1,308.36

Finding the Fourth Proportional to 1,515.95, 2,277.37 and 1,308.36

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Solution

The fourth proportional to 1,515.95, 2,277.37 and 1,308.36 is: 1,965.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,515.95 : 2,277.37 = 1,308.36 : x
  2. Step 2: Convert to fraction form
    1,515.95/2,277.37 = 1,308.36/x
  3. Step 3: Cross multiply
    1,515.95x = 2,277.37 × 1,308.36
  4. Step 4: Simplify right side
    1,515.95x = 2,979,633.67
  5. Step 5: Solve for x
    x = 2,979,633.67/1,515.95
  6. Step 6: Final answer
    x = 1,965.52

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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.