Home / 1,543.32-2,318.34-1,135.08

Finding the Fourth Proportional to 1,543.32, 2,318.34 and 1,135.08

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Solution

The fourth proportional to 1,543.32, 2,318.34 and 1,135.08 is: 1,705.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,543.32 : 2,318.34 = 1,135.08 : x
  2. Step 2: Convert to fraction form
    1,543.32/2,318.34 = 1,135.08/x
  3. Step 3: Cross multiply
    1,543.32x = 2,318.34 × 1,135.08
  4. Step 4: Simplify right side
    1,543.32x = 2,631,501.37
  5. Step 5: Solve for x
    x = 2,631,501.37/1,543.32
  6. Step 6: Final answer
    x = 1,705.09

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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.