Home / 6,639.63-9,162.51-3,807.48

Finding the Fourth Proportional to 6,639.63, 9,162.51 and 3,807.48

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Solution

The fourth proportional to 6,639.63, 9,162.51 and 3,807.48 is: 5,254.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,639.63 : 9,162.51 = 3,807.48 : x
  2. Step 2: Convert to fraction form
    6,639.63/9,162.51 = 3,807.48/x
  3. Step 3: Cross multiply
    6,639.63x = 9,162.51 × 3,807.48
  4. Step 4: Simplify right side
    6,639.63x = 34,886,073.57
  5. Step 5: Solve for x
    x = 34,886,073.57/6,639.63
  6. Step 6: Final answer
    x = 5,254.22

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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.