Home / 1,140.55-1,708.39-1,057.93

Finding the Fourth Proportional to 1,140.55, 1,708.39 and 1,057.93

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Solution

The fourth proportional to 1,140.55, 1,708.39 and 1,057.93 is: 1,584.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,140.55 : 1,708.39 = 1,057.93 : x
  2. Step 2: Convert to fraction form
    1,140.55/1,708.39 = 1,057.93/x
  3. Step 3: Cross multiply
    1,140.55x = 1,708.39 × 1,057.93
  4. Step 4: Simplify right side
    1,140.55x = 1,807,354.08
  5. Step 5: Solve for x
    x = 1,807,354.08/1,140.55
  6. Step 6: Final answer
    x = 1,584.64

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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.