Home / 1,175.16-1,621.56-702.92

Finding the Fourth Proportional to 1,175.16, 1,621.56 and 702.92

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Solution

The fourth proportional to 1,175.16, 1,621.56 and 702.92 is: 969.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,175.16 : 1,621.56 = 702.92 : x
  2. Step 2: Convert to fraction form
    1,175.16/1,621.56 = 702.92/x
  3. Step 3: Cross multiply
    1,175.16x = 1,621.56 × 702.92
  4. Step 4: Simplify right side
    1,175.16x = 1,139,826.96
  5. Step 5: Solve for x
    x = 1,139,826.96/1,175.16
  6. Step 6: Final answer
    x = 969.93

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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.