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Finding the Fourth Proportional to 1,748.25, 2,623.40 and 774.36

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Solution

The fourth proportional to 1,748.25, 2,623.40 and 774.36 is: 1,162.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,748.25 : 2,623.40 = 774.36 : x
  2. Step 2: Convert to fraction form
    1,748.25/2,623.40 = 774.36/x
  3. Step 3: Cross multiply
    1,748.25x = 2,623.40 × 774.36
  4. Step 4: Simplify right side
    1,748.25x = 2,031,459.41
  5. Step 5: Solve for x
    x = 2,031,459.41/1,748.25
  6. Step 6: Final answer
    x = 1,162.00

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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.