Home / 1,487.61-2,231.51-433.46

Finding the Fourth Proportional to 1,487.61, 2,231.51 and 433.46

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Solution

The fourth proportional to 1,487.61, 2,231.51 and 433.46 is: 650.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,487.61 : 2,231.51 = 433.46 : x
  2. Step 2: Convert to fraction form
    1,487.61/2,231.51 = 433.46/x
  3. Step 3: Cross multiply
    1,487.61x = 2,231.51 × 433.46
  4. Step 4: Simplify right side
    1,487.61x = 967,257.00
  5. Step 5: Solve for x
    x = 967,257.00/1,487.61
  6. Step 6: Final answer
    x = 650.21

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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.