Home / 1,011.27-1,395.75-569.18

Finding the Fourth Proportional to 1,011.27, 1,395.75 and 569.18

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Solution

The fourth proportional to 1,011.27, 1,395.75 and 569.18 is: 785.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,011.27 : 1,395.75 = 569.18 : x
  2. Step 2: Convert to fraction form
    1,011.27/1,395.75 = 569.18/x
  3. Step 3: Cross multiply
    1,011.27x = 1,395.75 × 569.18
  4. Step 4: Simplify right side
    1,011.27x = 794,426.55
  5. Step 5: Solve for x
    x = 794,426.55/1,011.27
  6. Step 6: Final answer
    x = 785.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.