Home / 3,127.32-4,315.64-1,730.07

Finding the Fourth Proportional to 3,127.32, 4,315.64 and 1,730.07

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Solution

The fourth proportional to 3,127.32, 4,315.64 and 1,730.07 is: 2,387.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,127.32 : 4,315.64 = 1,730.07 : x
  2. Step 2: Convert to fraction form
    3,127.32/4,315.64 = 1,730.07/x
  3. Step 3: Cross multiply
    3,127.32x = 4,315.64 × 1,730.07
  4. Step 4: Simplify right side
    3,127.32x = 7,466,359.29
  5. Step 5: Solve for x
    x = 7,466,359.29/3,127.32
  6. Step 6: Final answer
    x = 2,387.46

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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.