Home / 1,971.61-2,952.37-1,913.22

Finding the Fourth Proportional to 1,971.61, 2,952.37 and 1,913.22

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Solution

The fourth proportional to 1,971.61, 2,952.37 and 1,913.22 is: 2,864.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,971.61 : 2,952.37 = 1,913.22 : x
  2. Step 2: Convert to fraction form
    1,971.61/2,952.37 = 1,913.22/x
  3. Step 3: Cross multiply
    1,971.61x = 2,952.37 × 1,913.22
  4. Step 4: Simplify right side
    1,971.61x = 5,648,509.00
  5. Step 5: Solve for x
    x = 5,648,509.00/1,971.61
  6. Step 6: Final answer
    x = 2,864.92

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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.