Home / 3,113.04-4,670.24-921.95

Finding the Fourth Proportional to 3,113.04, 4,670.24 and 921.95

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Solution

The fourth proportional to 3,113.04, 4,670.24 and 921.95 is: 1,383.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,113.04 : 4,670.24 = 921.95 : x
  2. Step 2: Convert to fraction form
    3,113.04/4,670.24 = 921.95/x
  3. Step 3: Cross multiply
    3,113.04x = 4,670.24 × 921.95
  4. Step 4: Simplify right side
    3,113.04x = 4,305,699.81
  5. Step 5: Solve for x
    x = 4,305,699.81/3,113.04
  6. Step 6: Final answer
    x = 1,383.12

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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.