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Finding the Fourth Proportional to 1,888.94, 2,829.28 and 1,339.46

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Solution

The fourth proportional to 1,888.94, 2,829.28 and 1,339.46 is: 2,006.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,888.94 : 2,829.28 = 1,339.46 : x
  2. Step 2: Convert to fraction form
    1,888.94/2,829.28 = 1,339.46/x
  3. Step 3: Cross multiply
    1,888.94x = 2,829.28 × 1,339.46
  4. Step 4: Simplify right side
    1,888.94x = 3,789,693.24
  5. Step 5: Solve for x
    x = 3,789,693.24/1,888.94
  6. Step 6: Final answer
    x = 2,006.25

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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.