Home / 2,752.50-3,798.40-1,557.47

Finding the Fourth Proportional to 2,752.50, 3,798.40 and 1,557.47

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Solution

The fourth proportional to 2,752.50, 3,798.40 and 1,557.47 is: 2,149.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,752.50 : 3,798.40 = 1,557.47 : x
  2. Step 2: Convert to fraction form
    2,752.50/3,798.40 = 1,557.47/x
  3. Step 3: Cross multiply
    2,752.50x = 3,798.40 × 1,557.47
  4. Step 4: Simplify right side
    2,752.50x = 5,915,894.05
  5. Step 5: Solve for x
    x = 5,915,894.05/2,752.50
  6. Step 6: Final answer
    x = 2,149.28

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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.