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Finding the Fourth Proportional to 4,763.76, 6,574.23 and 2,639.40

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Solution

The fourth proportional to 4,763.76, 6,574.23 and 2,639.40 is: 3,642.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,763.76 : 6,574.23 = 2,639.40 : x
  2. Step 2: Convert to fraction form
    4,763.76/6,574.23 = 2,639.40/x
  3. Step 3: Cross multiply
    4,763.76x = 6,574.23 × 2,639.40
  4. Step 4: Simplify right side
    4,763.76x = 17,352,022.66
  5. Step 5: Solve for x
    x = 17,352,022.66/4,763.76
  6. Step 6: Final answer
    x = 3,642.51

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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.