Home / 4,664.79-6,436.80-3,155.62

Finding the Fourth Proportional to 4,664.79, 6,436.80 and 3,155.62

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Solution

The fourth proportional to 4,664.79, 6,436.80 and 3,155.62 is: 4,354.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,664.79 : 6,436.80 = 3,155.62 : x
  2. Step 2: Convert to fraction form
    4,664.79/6,436.80 = 3,155.62/x
  3. Step 3: Cross multiply
    4,664.79x = 6,436.80 × 3,155.62
  4. Step 4: Simplify right side
    4,664.79x = 20,312,094.82
  5. Step 5: Solve for x
    x = 20,312,094.82/4,664.79
  6. Step 6: Final answer
    x = 4,354.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.