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Finding the Fourth Proportional to 1,799.60, 2,693.93 and 1,387.71

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Solution

The fourth proportional to 1,799.60, 2,693.93 and 1,387.71 is: 2,077.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,799.60 : 2,693.93 = 1,387.71 : x
  2. Step 2: Convert to fraction form
    1,799.60/2,693.93 = 1,387.71/x
  3. Step 3: Cross multiply
    1,799.60x = 2,693.93 × 1,387.71
  4. Step 4: Simplify right side
    1,799.60x = 3,738,386.66
  5. Step 5: Solve for x
    x = 3,738,386.66/1,799.60
  6. Step 6: Final answer
    x = 2,077.35

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1.5x scale

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.