Home / 3,345-4,616.16-1,947.84

Finding the Fourth Proportional to 3,345, 4,616.16 and 1,947.84

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Solution

The fourth proportional to 3,345, 4,616.16 and 1,947.84 is: 2,688.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,345 : 4,616.16 = 1,947.84 : x
  2. Step 2: Convert to fraction form
    3,345/4,616.16 = 1,947.84/x
  3. Step 3: Cross multiply
    3,345x = 4,616.16 × 1,947.84
  4. Step 4: Simplify right side
    3,345x = 8,991,541.09
  5. Step 5: Solve for x
    x = 8,991,541.09/3,345
  6. Step 6: Final answer
    x = 2,688.05

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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.