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Finding the Fourth Proportional to 1,774.70, 2,660 and 1,044.80

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Solution

The fourth proportional to 1,774.70, 2,660 and 1,044.80 is: 1,565.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,774.70 : 2,660 = 1,044.80 : x
  2. Step 2: Convert to fraction form
    1,774.70/2,660 = 1,044.80/x
  3. Step 3: Cross multiply
    1,774.70x = 2,660 × 1,044.80
  4. Step 4: Simplify right side
    1,774.70x = 2,779,168
  5. Step 5: Solve for x
    x = 2,779,168/1,774.70
  6. Step 6: Final answer
    x = 1,565.99

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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.