Home / 1,580.60-2,370.06-1,087.76

Finding the Fourth Proportional to 1,580.60, 2,370.06 and 1,087.76

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Solution

The fourth proportional to 1,580.60, 2,370.06 and 1,087.76 is: 1,631.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,580.60 : 2,370.06 = 1,087.76 : x
  2. Step 2: Convert to fraction form
    1,580.60/2,370.06 = 1,087.76/x
  3. Step 3: Cross multiply
    1,580.60x = 2,370.06 × 1,087.76
  4. Step 4: Simplify right side
    1,580.60x = 2,578,056.47
  5. Step 5: Solve for x
    x = 2,578,056.47/1,580.60
  6. Step 6: Final answer
    x = 1,631.06

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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.