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Finding the Fourth Proportional to 1,868.25, 2,802.31 and 569.69

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Solution

The fourth proportional to 1,868.25, 2,802.31 and 569.69 is: 854.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,868.25 : 2,802.31 = 569.69 : x
  2. Step 2: Convert to fraction form
    1,868.25/2,802.31 = 569.69/x
  3. Step 3: Cross multiply
    1,868.25x = 2,802.31 × 569.69
  4. Step 4: Simplify right side
    1,868.25x = 1,596,447.98
  5. Step 5: Solve for x
    x = 1,596,447.98/1,868.25
  6. Step 6: Final answer
    x = 854.52

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1.5x scale

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.