Home / 1,681.34-2,319.27-1,091.87

Finding the Fourth Proportional to 1,681.34, 2,319.27 and 1,091.87

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Solution

The fourth proportional to 1,681.34, 2,319.27 and 1,091.87 is: 1,506.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,681.34 : 2,319.27 = 1,091.87 : x
  2. Step 2: Convert to fraction form
    1,681.34/2,319.27 = 1,091.87/x
  3. Step 3: Cross multiply
    1,681.34x = 2,319.27 × 1,091.87
  4. Step 4: Simplify right side
    1,681.34x = 2,532,329.74
  5. Step 5: Solve for x
    x = 2,532,329.74/1,681.34
  6. Step 6: Final answer
    x = 1,506.14

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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.