Home / 1,748.36-2,621.93-515.45

Finding the Fourth Proportional to 1,748.36, 2,621.93 and 515.45

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Solution

The fourth proportional to 1,748.36, 2,621.93 and 515.45 is: 772.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,748.36 : 2,621.93 = 515.45 : x
  2. Step 2: Convert to fraction form
    1,748.36/2,621.93 = 515.45/x
  3. Step 3: Cross multiply
    1,748.36x = 2,621.93 × 515.45
  4. Step 4: Simplify right side
    1,748.36x = 1,351,462.00
  5. Step 5: Solve for x
    x = 1,351,462.00/1,748.36
  6. Step 6: Final answer
    x = 772.99

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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.