Home / 1,050.10-1,574.98-319.63

Finding the Fourth Proportional to 1,050.10, 1,574.98 and 319.63

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Solution

The fourth proportional to 1,050.10, 1,574.98 and 319.63 is: 479.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,050.10 : 1,574.98 = 319.63 : x
  2. Step 2: Convert to fraction form
    1,050.10/1,574.98 = 319.63/x
  3. Step 3: Cross multiply
    1,050.10x = 1,574.98 × 319.63
  4. Step 4: Simplify right side
    1,050.10x = 503,410.86
  5. Step 5: Solve for x
    x = 503,410.86/1,050.10
  6. Step 6: Final answer
    x = 479.39

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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.