Home / 4,005.72-6,009.28-1,929.47

Finding the Fourth Proportional to 4,005.72, 6,009.28 and 1,929.47

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Solution

The fourth proportional to 4,005.72, 6,009.28 and 1,929.47 is: 2,894.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,005.72 : 6,009.28 = 1,929.47 : x
  2. Step 2: Convert to fraction form
    4,005.72/6,009.28 = 1,929.47/x
  3. Step 3: Cross multiply
    4,005.72x = 6,009.28 × 1,929.47
  4. Step 4: Simplify right side
    4,005.72x = 11,594,690.61
  5. Step 5: Solve for x
    x = 11,594,690.61/4,005.72
  6. Step 6: Final answer
    x = 2,894.53

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1.5x scale

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.