Home / 1,475.02-2,212.53-379.47

Finding the Fourth Proportional to 1,475.02, 2,212.53 and 379.47

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Solution

The fourth proportional to 1,475.02, 2,212.53 and 379.47 is: 569.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,475.02 : 2,212.53 = 379.47 : x
  2. Step 2: Convert to fraction form
    1,475.02/2,212.53 = 379.47/x
  3. Step 3: Cross multiply
    1,475.02x = 2,212.53 × 379.47
  4. Step 4: Simplify right side
    1,475.02x = 839,586.86
  5. Step 5: Solve for x
    x = 839,586.86/1,475.02
  6. Step 6: Final answer
    x = 569.21

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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.