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Finding the Fourth Proportional to 1,730.80, 2,596.20 and 560.80

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Solution

The fourth proportional to 1,730.80, 2,596.20 and 560.80 is: 841.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,730.80 : 2,596.20 = 560.80 : x
  2. Step 2: Convert to fraction form
    1,730.80/2,596.20 = 560.80/x
  3. Step 3: Cross multiply
    1,730.80x = 2,596.20 × 560.80
  4. Step 4: Simplify right side
    1,730.80x = 1,455,948.96
  5. Step 5: Solve for x
    x = 1,455,948.96/1,730.80
  6. Step 6: Final answer
    x = 841.20

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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.