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Finding the Fourth Proportional to 1,602.74, 2,209.58 and 1,071.65

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Solution

The fourth proportional to 1,602.74, 2,209.58 and 1,071.65 is: 1,477.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,602.74 : 2,209.58 = 1,071.65 : x
  2. Step 2: Convert to fraction form
    1,602.74/2,209.58 = 1,071.65/x
  3. Step 3: Cross multiply
    1,602.74x = 2,209.58 × 1,071.65
  4. Step 4: Simplify right side
    1,602.74x = 2,367,896.41
  5. Step 5: Solve for x
    x = 2,367,896.41/1,602.74
  6. Step 6: Final answer
    x = 1,477.41

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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.