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Finding the Fourth Proportional to 1,668.95, 2,501.76 and 1,114.12

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Solution

The fourth proportional to 1,668.95, 2,501.76 and 1,114.12 is: 1,670.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,668.95 : 2,501.76 = 1,114.12 : x
  2. Step 2: Convert to fraction form
    1,668.95/2,501.76 = 1,114.12/x
  3. Step 3: Cross multiply
    1,668.95x = 2,501.76 × 1,114.12
  4. Step 4: Simplify right side
    1,668.95x = 2,787,254.47
  5. Step 5: Solve for x
    x = 2,787,254.47/1,668.95
  6. Step 6: Final answer
    x = 1,670.06

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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.