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Finding the Fourth Proportional to 1,749, 2,623.51 and 450.47

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Solution

The fourth proportional to 1,749, 2,623.51 and 450.47 is: 675.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,749 : 2,623.51 = 450.47 : x
  2. Step 2: Convert to fraction form
    1,749/2,623.51 = 450.47/x
  3. Step 3: Cross multiply
    1,749x = 2,623.51 × 450.47
  4. Step 4: Simplify right side
    1,749x = 1,181,798.31
  5. Step 5: Solve for x
    x = 1,181,798.31/1,749
  6. Step 6: Final answer
    x = 675.70

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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.