Home / 1,151.47-1,718.35-1,028.44

Finding the Fourth Proportional to 1,151.47, 1,718.35 and 1,028.44

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Solution

The fourth proportional to 1,151.47, 1,718.35 and 1,028.44 is: 1,534.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,151.47 : 1,718.35 = 1,028.44 : x
  2. Step 2: Convert to fraction form
    1,151.47/1,718.35 = 1,028.44/x
  3. Step 3: Cross multiply
    1,151.47x = 1,718.35 × 1,028.44
  4. Step 4: Simplify right side
    1,151.47x = 1,767,219.87
  5. Step 5: Solve for x
    x = 1,767,219.87/1,151.47
  6. Step 6: Final answer
    x = 1,534.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.