Home / 1,568.31-2,352.47-1,275.47

Finding the Fourth Proportional to 1,568.31, 2,352.47 and 1,275.47

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Solution

The fourth proportional to 1,568.31, 2,352.47 and 1,275.47 is: 1,913.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,568.31 : 2,352.47 = 1,275.47 : x
  2. Step 2: Convert to fraction form
    1,568.31/2,352.47 = 1,275.47/x
  3. Step 3: Cross multiply
    1,568.31x = 2,352.47 × 1,275.47
  4. Step 4: Simplify right side
    1,568.31x = 3,000,504.91
  5. Step 5: Solve for x
    x = 3,000,504.91/1,568.31
  6. Step 6: Final answer
    x = 1,913.21

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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.