Home / 1,898.16-2,619.48-1,047.42

Finding the Fourth Proportional to 1,898.16, 2,619.48 and 1,047.42

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Solution

The fourth proportional to 1,898.16, 2,619.48 and 1,047.42 is: 1,445.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,898.16 : 2,619.48 = 1,047.42 : x
  2. Step 2: Convert to fraction form
    1,898.16/2,619.48 = 1,047.42/x
  3. Step 3: Cross multiply
    1,898.16x = 2,619.48 × 1,047.42
  4. Step 4: Simplify right side
    1,898.16x = 2,743,695.74
  5. Step 5: Solve for x
    x = 2,743,695.74/1,898.16
  6. Step 6: Final answer
    x = 1,445.45

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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.