Home / 6,389.32-9,585.42-1,947.38

Finding the Fourth Proportional to 6,389.32, 9,585.42 and 1,947.38

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Solution

The fourth proportional to 6,389.32, 9,585.42 and 1,947.38 is: 2,921.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,389.32 : 9,585.42 = 1,947.38 : x
  2. Step 2: Convert to fraction form
    6,389.32/9,585.42 = 1,947.38/x
  3. Step 3: Cross multiply
    6,389.32x = 9,585.42 × 1,947.38
  4. Step 4: Simplify right side
    6,389.32x = 18,666,479.16
  5. Step 5: Solve for x
    x = 18,666,479.16/6,389.32
  6. Step 6: Final answer
    x = 2,921.51

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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.