Home / 1,754.34-2,421.25-1,091.40

Finding the Fourth Proportional to 1,754.34, 2,421.25 and 1,091.40

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Solution

The fourth proportional to 1,754.34, 2,421.25 and 1,091.40 is: 1,506.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,754.34 : 2,421.25 = 1,091.40 : x
  2. Step 2: Convert to fraction form
    1,754.34/2,421.25 = 1,091.40/x
  3. Step 3: Cross multiply
    1,754.34x = 2,421.25 × 1,091.40
  4. Step 4: Simplify right side
    1,754.34x = 2,642,549.52
  5. Step 5: Solve for x
    x = 2,642,549.52/1,754.34
  6. Step 6: Final answer
    x = 1,506.30

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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.