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Finding the Fourth Proportional to 3,642.63, 5,464.16 and 1,045.50

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Solution

The fourth proportional to 3,642.63, 5,464.16 and 1,045.50 is: 1,568.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,642.63 : 5,464.16 = 1,045.50 : x
  2. Step 2: Convert to fraction form
    3,642.63/5,464.16 = 1,045.50/x
  3. Step 3: Cross multiply
    3,642.63x = 5,464.16 × 1,045.50
  4. Step 4: Simplify right side
    3,642.63x = 5,712,774.05
  5. Step 5: Solve for x
    x = 5,712,774.05/3,642.63
  6. Step 6: Final answer
    x = 1,568.31

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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.