Home / 1,868.42-2,802.14-569.90

Finding the Fourth Proportional to 1,868.42, 2,802.14 and 569.90

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Solution

The fourth proportional to 1,868.42, 2,802.14 and 569.90 is: 854.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,868.42 : 2,802.14 = 569.90 : x
  2. Step 2: Convert to fraction form
    1,868.42/2,802.14 = 569.90/x
  3. Step 3: Cross multiply
    1,868.42x = 2,802.14 × 569.90
  4. Step 4: Simplify right side
    1,868.42x = 1,596,939.59
  5. Step 5: Solve for x
    x = 1,596,939.59/1,868.42
  6. Step 6: Final answer
    x = 854.70

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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.