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Finding the Fourth Proportional to 1,859.25, 2,788.88 and 560.69

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Solution

The fourth proportional to 1,859.25, 2,788.88 and 560.69 is: 841.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,859.25 : 2,788.88 = 560.69 : x
  2. Step 2: Convert to fraction form
    1,859.25/2,788.88 = 560.69/x
  3. Step 3: Cross multiply
    1,859.25x = 2,788.88 × 560.69
  4. Step 4: Simplify right side
    1,859.25x = 1,563,697.13
  5. Step 5: Solve for x
    x = 1,563,697.13/1,859.25
  6. Step 6: Final answer
    x = 841.04

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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.