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Finding the Fourth Proportional to 1,720.90, 2,325.04 and 1,720.90

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Solution

The fourth proportional to 1,720.90, 2,325.04 and 1,720.90 is: 2,325.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,720.90 : 2,325.04 = 1,720.90 : x
  2. Step 2: Convert to fraction form
    1,720.90/2,325.04 = 1,720.90/x
  3. Step 3: Cross multiply
    1,720.90x = 2,325.04 × 1,720.90
  4. Step 4: Simplify right side
    1,720.90x = 4,001,161.34
  5. Step 5: Solve for x
    x = 4,001,161.34/1,720.90
  6. Step 6: Final answer
    x = 2,325.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.