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Finding the Fourth Proportional to 1,571.35, 2,355.38 and 530.99

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Solution

The fourth proportional to 1,571.35, 2,355.38 and 530.99 is: 795.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,571.35 : 2,355.38 = 530.99 : x
  2. Step 2: Convert to fraction form
    1,571.35/2,355.38 = 530.99/x
  3. Step 3: Cross multiply
    1,571.35x = 2,355.38 × 530.99
  4. Step 4: Simplify right side
    1,571.35x = 1,250,683.23
  5. Step 5: Solve for x
    x = 1,250,683.23/1,571.35
  6. Step 6: Final answer
    x = 795.93

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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.