Home / 1,542.79-2,130.33-1,264.15

Finding the Fourth Proportional to 1,542.79, 2,130.33 and 1,264.15

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Solution

The fourth proportional to 1,542.79, 2,130.33 and 1,264.15 is: 1,745.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,542.79 : 2,130.33 = 1,264.15 : x
  2. Step 2: Convert to fraction form
    1,542.79/2,130.33 = 1,264.15/x
  3. Step 3: Cross multiply
    1,542.79x = 2,130.33 × 1,264.15
  4. Step 4: Simplify right side
    1,542.79x = 2,693,056.67
  5. Step 5: Solve for x
    x = 2,693,056.67/1,542.79
  6. Step 6: Final answer
    x = 1,745.58

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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.