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Finding the Fourth Proportional to 4,626, 6,386.76 and 3,672.79

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Solution

The fourth proportional to 4,626, 6,386.76 and 3,672.79 is: 5,070.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,626 : 6,386.76 = 3,672.79 : x
  2. Step 2: Convert to fraction form
    4,626/6,386.76 = 3,672.79/x
  3. Step 3: Cross multiply
    4,626x = 6,386.76 × 3,672.79
  4. Step 4: Simplify right side
    4,626x = 23,457,228.26
  5. Step 5: Solve for x
    x = 23,457,228.26/4,626
  6. Step 6: Final answer
    x = 5,070.74

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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.