Home / 1,047.10-1,569.24-388.37

Finding the Fourth Proportional to 1,047.10, 1,569.24 and 388.37

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Solution

The fourth proportional to 1,047.10, 1,569.24 and 388.37 is: 582.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,047.10 : 1,569.24 = 388.37 : x
  2. Step 2: Convert to fraction form
    1,047.10/1,569.24 = 388.37/x
  3. Step 3: Cross multiply
    1,047.10x = 1,569.24 × 388.37
  4. Step 4: Simplify right side
    1,047.10x = 609,445.74
  5. Step 5: Solve for x
    x = 609,445.74/1,047.10
  6. Step 6: Final answer
    x = 582.03

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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.