Home / 1,742.81-2,611.48-1,047.83

Finding the Fourth Proportional to 1,742.81, 2,611.48 and 1,047.83

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Solution

The fourth proportional to 1,742.81, 2,611.48 and 1,047.83 is: 1,570.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,742.81 : 2,611.48 = 1,047.83 : x
  2. Step 2: Convert to fraction form
    1,742.81/2,611.48 = 1,047.83/x
  3. Step 3: Cross multiply
    1,742.81x = 2,611.48 × 1,047.83
  4. Step 4: Simplify right side
    1,742.81x = 2,736,387.09
  5. Step 5: Solve for x
    x = 2,736,387.09/1,742.81
  6. Step 6: Final answer
    x = 1,570.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.