Home / 1,567.81-2,349.66-981.42

Finding the Fourth Proportional to 1,567.81, 2,349.66 and 981.42

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Solution

The fourth proportional to 1,567.81, 2,349.66 and 981.42 is: 1,470.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,567.81 : 2,349.66 = 981.42 : x
  2. Step 2: Convert to fraction form
    1,567.81/2,349.66 = 981.42/x
  3. Step 3: Cross multiply
    1,567.81x = 2,349.66 × 981.42
  4. Step 4: Simplify right side
    1,567.81x = 2,305,992.67
  5. Step 5: Solve for x
    x = 2,305,992.67/1,567.81
  6. Step 6: Final answer
    x = 1,470.84

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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.