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Finding the Fourth Proportional to 1,775.54, 2,642.90 and 1,749.24

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Solution

The fourth proportional to 1,775.54, 2,642.90 and 1,749.24 is: 2,603.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,775.54 : 2,642.90 = 1,749.24 : x
  2. Step 2: Convert to fraction form
    1,775.54/2,642.90 = 1,749.24/x
  3. Step 3: Cross multiply
    1,775.54x = 2,642.90 × 1,749.24
  4. Step 4: Simplify right side
    1,775.54x = 4,623,057.65
  5. Step 5: Solve for x
    x = 4,623,057.65/1,775.54
  6. Step 6: Final answer
    x = 2,603.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.