Home / 1,851.65-2,555.23-1,012.35

Finding the Fourth Proportional to 1,851.65, 2,555.23 and 1,012.35

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Solution

The fourth proportional to 1,851.65, 2,555.23 and 1,012.35 is: 1,397.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,851.65 : 2,555.23 = 1,012.35 : x
  2. Step 2: Convert to fraction form
    1,851.65/2,555.23 = 1,012.35/x
  3. Step 3: Cross multiply
    1,851.65x = 2,555.23 × 1,012.35
  4. Step 4: Simplify right side
    1,851.65x = 2,586,787.09
  5. Step 5: Solve for x
    x = 2,586,787.09/1,851.65
  6. Step 6: Final answer
    x = 1,397.02

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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.