Home / 1,165.26-1,746.18-615.78

Finding the Fourth Proportional to 1,165.26, 1,746.18 and 615.78

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Solution

The fourth proportional to 1,165.26, 1,746.18 and 615.78 is: 922.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,165.26 : 1,746.18 = 615.78 : x
  2. Step 2: Convert to fraction form
    1,165.26/1,746.18 = 615.78/x
  3. Step 3: Cross multiply
    1,165.26x = 1,746.18 × 615.78
  4. Step 4: Simplify right side
    1,165.26x = 1,075,262.72
  5. Step 5: Solve for x
    x = 1,075,262.72/1,165.26
  6. Step 6: Final answer
    x = 922.77

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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.