Home / 1,681.24-2,518.66-948.60

Finding the Fourth Proportional to 1,681.24, 2,518.66 and 948.60

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Solution

The fourth proportional to 1,681.24, 2,518.66 and 948.60 is: 1,421.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,681.24 : 2,518.66 = 948.60 : x
  2. Step 2: Convert to fraction form
    1,681.24/2,518.66 = 948.60/x
  3. Step 3: Cross multiply
    1,681.24x = 2,518.66 × 948.60
  4. Step 4: Simplify right side
    1,681.24x = 2,389,200.88
  5. Step 5: Solve for x
    x = 2,389,200.88/1,681.24
  6. Step 6: Final answer
    x = 1,421.09

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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.