Home / 1,567.14-2,162.87-1,007.43

Finding the Fourth Proportional to 1,567.14, 2,162.87 and 1,007.43

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Solution

The fourth proportional to 1,567.14, 2,162.87 and 1,007.43 is: 1,390.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,567.14 : 2,162.87 = 1,007.43 : x
  2. Step 2: Convert to fraction form
    1,567.14/2,162.87 = 1,007.43/x
  3. Step 3: Cross multiply
    1,567.14x = 2,162.87 × 1,007.43
  4. Step 4: Simplify right side
    1,567.14x = 2,178,940.12
  5. Step 5: Solve for x
    x = 2,178,940.12/1,567.14
  6. Step 6: Final answer
    x = 1,390.39

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1.5x scale

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.