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Finding the Fourth Proportional to 3,641.95, 5,463.20 and 1,302.40

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Solution

The fourth proportional to 3,641.95, 5,463.20 and 1,302.40 is: 1,953.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,641.95 : 5,463.20 = 1,302.40 : x
  2. Step 2: Convert to fraction form
    3,641.95/5,463.20 = 1,302.40/x
  3. Step 3: Cross multiply
    3,641.95x = 5,463.20 × 1,302.40
  4. Step 4: Simplify right side
    3,641.95x = 7,115,271.68
  5. Step 5: Solve for x
    x = 7,115,271.68/3,641.95
  6. Step 6: Final answer
    x = 1,953.70

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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.