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Finding the Fourth Proportional to 1,624.59, 2,240.40 and 1,065.54

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Solution

The fourth proportional to 1,624.59, 2,240.40 and 1,065.54 is: 1,469.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,624.59 : 2,240.40 = 1,065.54 : x
  2. Step 2: Convert to fraction form
    1,624.59/2,240.40 = 1,065.54/x
  3. Step 3: Cross multiply
    1,624.59x = 2,240.40 × 1,065.54
  4. Step 4: Simplify right side
    1,624.59x = 2,387,235.82
  5. Step 5: Solve for x
    x = 2,387,235.82/1,624.59
  6. Step 6: Final answer
    x = 1,469.44

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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.