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Finding the Fourth Proportional to 1,800.79, 2,484.97 and 1,054.71

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Solution

The fourth proportional to 1,800.79, 2,484.97 and 1,054.71 is: 1,455.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,800.79 : 2,484.97 = 1,054.71 : x
  2. Step 2: Convert to fraction form
    1,800.79/2,484.97 = 1,054.71/x
  3. Step 3: Cross multiply
    1,800.79x = 2,484.97 × 1,054.71
  4. Step 4: Simplify right side
    1,800.79x = 2,620,920.07
  5. Step 5: Solve for x
    x = 2,620,920.07/1,800.79
  6. Step 6: Final answer
    x = 1,455.43

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1.5x scale

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.