Home / 1,869.13-2,803.69-501.13

Finding the Fourth Proportional to 1,869.13, 2,803.69 and 501.13

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Solution

The fourth proportional to 1,869.13, 2,803.69 and 501.13 is: 751.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,869.13 : 2,803.69 = 501.13 : x
  2. Step 2: Convert to fraction form
    1,869.13/2,803.69 = 501.13/x
  3. Step 3: Cross multiply
    1,869.13x = 2,803.69 × 501.13
  4. Step 4: Simplify right side
    1,869.13x = 1,404,997.90
  5. Step 5: Solve for x
    x = 1,404,997.90/1,869.13
  6. Step 6: Final answer
    x = 751.69

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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.