Home / 1,851.19-2,554.81-1,065.42

Finding the Fourth Proportional to 1,851.19, 2,554.81 and 1,065.42

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Solution

The fourth proportional to 1,851.19, 2,554.81 and 1,065.42 is: 1,470.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,851.19 : 2,554.81 = 1,065.42 : x
  2. Step 2: Convert to fraction form
    1,851.19/2,554.81 = 1,065.42/x
  3. Step 3: Cross multiply
    1,851.19x = 2,554.81 × 1,065.42
  4. Step 4: Simplify right side
    1,851.19x = 2,721,943.01
  5. Step 5: Solve for x
    x = 2,721,943.01/1,851.19
  6. Step 6: Final answer
    x = 1,470.38

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1.5x scale

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.