Home / 1,571.22-2,355.30-530.28

Finding the Fourth Proportional to 1,571.22, 2,355.30 and 530.28

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Solution

The fourth proportional to 1,571.22, 2,355.30 and 530.28 is: 794.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,571.22 : 2,355.30 = 530.28 : x
  2. Step 2: Convert to fraction form
    1,571.22/2,355.30 = 530.28/x
  3. Step 3: Cross multiply
    1,571.22x = 2,355.30 × 530.28
  4. Step 4: Simplify right side
    1,571.22x = 1,248,968.48
  5. Step 5: Solve for x
    x = 1,248,968.48/1,571.22
  6. Step 6: Final answer
    x = 794.90

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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.