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Finding the Fourth Proportional to 2,352.66, 3,529.23 and 621.28

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Solution

The fourth proportional to 2,352.66, 3,529.23 and 621.28 is: 931.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,352.66 : 3,529.23 = 621.28 : x
  2. Step 2: Convert to fraction form
    2,352.66/3,529.23 = 621.28/x
  3. Step 3: Cross multiply
    2,352.66x = 3,529.23 × 621.28
  4. Step 4: Simplify right side
    2,352.66x = 2,192,642.10
  5. Step 5: Solve for x
    x = 2,192,642.10/2,352.66
  6. Step 6: Final answer
    x = 931.99

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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.