Home / 1,583.15-2,374.79-487.62

Finding the Fourth Proportional to 1,583.15, 2,374.79 and 487.62

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Solution

The fourth proportional to 1,583.15, 2,374.79 and 487.62 is: 731.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,583.15 : 2,374.79 = 487.62 : x
  2. Step 2: Convert to fraction form
    1,583.15/2,374.79 = 487.62/x
  3. Step 3: Cross multiply
    1,583.15x = 2,374.79 × 487.62
  4. Step 4: Simplify right side
    1,583.15x = 1,157,992.66
  5. Step 5: Solve for x
    x = 1,157,992.66/1,583.15
  6. Step 6: Final answer
    x = 731.45

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Double scale
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1.5x scale

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.