Home / 1,857.10-2,563.01-1,071.13

Finding the Fourth Proportional to 1,857.10, 2,563.01 and 1,071.13

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Solution

The fourth proportional to 1,857.10, 2,563.01 and 1,071.13 is: 1,478.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,857.10 : 2,563.01 = 1,071.13 : x
  2. Step 2: Convert to fraction form
    1,857.10/2,563.01 = 1,071.13/x
  3. Step 3: Cross multiply
    1,857.10x = 2,563.01 × 1,071.13
  4. Step 4: Simplify right side
    1,857.10x = 2,745,306.76
  5. Step 5: Solve for x
    x = 2,745,306.76/1,857.10
  6. Step 6: Final answer
    x = 1,478.28

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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.