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Finding the Fourth Proportional to 3,363.79, 4,641.63 and 1,947.93

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Solution

The fourth proportional to 3,363.79, 4,641.63 and 1,947.93 is: 2,687.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,363.79 : 4,641.63 = 1,947.93 : x
  2. Step 2: Convert to fraction form
    3,363.79/4,641.63 = 1,947.93/x
  3. Step 3: Cross multiply
    3,363.79x = 4,641.63 × 1,947.93
  4. Step 4: Simplify right side
    3,363.79x = 9,041,547.12
  5. Step 5: Solve for x
    x = 9,041,547.12/3,363.79
  6. Step 6: Final answer
    x = 2,687.90

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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.