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Finding the Fourth Proportional to 1,888.39, 2,826.53 and 1,008.70

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Solution

The fourth proportional to 1,888.39, 2,826.53 and 1,008.70 is: 1,509.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,888.39 : 2,826.53 = 1,008.70 : x
  2. Step 2: Convert to fraction form
    1,888.39/2,826.53 = 1,008.70/x
  3. Step 3: Cross multiply
    1,888.39x = 2,826.53 × 1,008.70
  4. Step 4: Simplify right side
    1,888.39x = 2,851,108.37
  5. Step 5: Solve for x
    x = 2,851,108.37/1,888.39
  6. Step 6: Final answer
    x = 1,509.81

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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.