Home / 1,870.56-2,580.66-1,172.34

Finding the Fourth Proportional to 1,870.56, 2,580.66 and 1,172.34

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Solution

The fourth proportional to 1,870.56, 2,580.66 and 1,172.34 is: 1,617.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,870.56 : 2,580.66 = 1,172.34 : x
  2. Step 2: Convert to fraction form
    1,870.56/2,580.66 = 1,172.34/x
  3. Step 3: Cross multiply
    1,870.56x = 2,580.66 × 1,172.34
  4. Step 4: Simplify right side
    1,870.56x = 3,025,410.94
  5. Step 5: Solve for x
    x = 3,025,410.94/1,870.56
  6. Step 6: Final answer
    x = 1,617.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.