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Finding the Fourth Proportional to 1,641.46, 2,458.23 and 946.42

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Solution

The fourth proportional to 1,641.46, 2,458.23 and 946.42 is: 1,417.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,641.46 : 2,458.23 = 946.42 : x
  2. Step 2: Convert to fraction form
    1,641.46/2,458.23 = 946.42/x
  3. Step 3: Cross multiply
    1,641.46x = 2,458.23 × 946.42
  4. Step 4: Simplify right side
    1,641.46x = 2,326,518.04
  5. Step 5: Solve for x
    x = 2,326,518.04/1,641.46
  6. Step 6: Final answer
    x = 1,417.35

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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.