Home / 1,750.72-2,415.08-1,330.38

Finding the Fourth Proportional to 1,750.72, 2,415.08 and 1,330.38

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Solution

The fourth proportional to 1,750.72, 2,415.08 and 1,330.38 is: 1,835.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,750.72 : 2,415.08 = 1,330.38 : x
  2. Step 2: Convert to fraction form
    1,750.72/2,415.08 = 1,330.38/x
  3. Step 3: Cross multiply
    1,750.72x = 2,415.08 × 1,330.38
  4. Step 4: Simplify right side
    1,750.72x = 3,212,974.13
  5. Step 5: Solve for x
    x = 3,212,974.13/1,750.72
  6. Step 6: Final answer
    x = 1,835.23

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Half scale
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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.