Home / 1,114.13-1,671.16-292.40

Finding the Fourth Proportional to 1,114.13, 1,671.16 and 292.40

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Solution

The fourth proportional to 1,114.13, 1,671.16 and 292.40 is: 438.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,114.13 : 1,671.16 = 292.40 : x
  2. Step 2: Convert to fraction form
    1,114.13/1,671.16 = 292.40/x
  3. Step 3: Cross multiply
    1,114.13x = 1,671.16 × 292.40
  4. Step 4: Simplify right side
    1,114.13x = 488,647.18
  5. Step 5: Solve for x
    x = 488,647.18/1,114.13
  6. Step 6: Final answer
    x = 438.59

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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.