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Finding the Fourth Proportional to 1,137.33, 1,569.18 and 695.19

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Solution

The fourth proportional to 1,137.33, 1,569.18 and 695.19 is: 959.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,137.33 : 1,569.18 = 695.19 : x
  2. Step 2: Convert to fraction form
    1,137.33/1,569.18 = 695.19/x
  3. Step 3: Cross multiply
    1,137.33x = 1,569.18 × 695.19
  4. Step 4: Simplify right side
    1,137.33x = 1,090,878.24
  5. Step 5: Solve for x
    x = 1,090,878.24/1,137.33
  6. Step 6: Final answer
    x = 959.16

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Half scale
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Double scale
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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.