Home / 1,316.60-1,975.44-585.68

Finding the Fourth Proportional to 1,316.60, 1,975.44 and 585.68

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Solution

The fourth proportional to 1,316.60, 1,975.44 and 585.68 is: 878.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316.60 : 1,975.44 = 585.68 : x
  2. Step 2: Convert to fraction form
    1,316.60/1,975.44 = 585.68/x
  3. Step 3: Cross multiply
    1,316.60x = 1,975.44 × 585.68
  4. Step 4: Simplify right side
    1,316.60x = 1,156,975.84
  5. Step 5: Solve for x
    x = 1,156,975.84/1,316.60
  6. Step 6: Final answer
    x = 878.76

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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.