Home / 4,929.36-7,392.12-1,641.56

Finding the Fourth Proportional to 4,929.36, 7,392.12 and 1,641.56

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Solution

The fourth proportional to 4,929.36, 7,392.12 and 1,641.56 is: 2,461.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,929.36 : 7,392.12 = 1,641.56 : x
  2. Step 2: Convert to fraction form
    4,929.36/7,392.12 = 1,641.56/x
  3. Step 3: Cross multiply
    4,929.36x = 7,392.12 × 1,641.56
  4. Step 4: Simplify right side
    4,929.36x = 12,134,608.51
  5. Step 5: Solve for x
    x = 12,134,608.51/4,929.36
  6. Step 6: Final answer
    x = 2,461.70

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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.