Home / 3,642.78-5,463.90-1,302.60

Finding the Fourth Proportional to 3,642.78, 5,463.90 and 1,302.60

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Solution

The fourth proportional to 3,642.78, 5,463.90 and 1,302.60 is: 1,953.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,642.78 : 5,463.90 = 1,302.60 : x
  2. Step 2: Convert to fraction form
    3,642.78/5,463.90 = 1,302.60/x
  3. Step 3: Cross multiply
    3,642.78x = 5,463.90 × 1,302.60
  4. Step 4: Simplify right side
    3,642.78x = 7,117,276.14
  5. Step 5: Solve for x
    x = 7,117,276.14/3,642.78
  6. Step 6: Final answer
    x = 1,953.80

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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.