Home / 1,857.45-2,563.54-1,071.48

Finding the Fourth Proportional to 1,857.45, 2,563.54 and 1,071.48

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Solution

The fourth proportional to 1,857.45, 2,563.54 and 1,071.48 is: 1,478.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,857.45 : 2,563.54 = 1,071.48 : x
  2. Step 2: Convert to fraction form
    1,857.45/2,563.54 = 1,071.48/x
  3. Step 3: Cross multiply
    1,857.45x = 2,563.54 × 1,071.48
  4. Step 4: Simplify right side
    1,857.45x = 2,746,779.16
  5. Step 5: Solve for x
    x = 2,746,779.16/1,857.45
  6. Step 6: Final answer
    x = 1,478.79

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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.