Home / 3,646.86-5,471.79-1,307.16

Finding the Fourth Proportional to 3,646.86, 5,471.79 and 1,307.16

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Solution

The fourth proportional to 3,646.86, 5,471.79 and 1,307.16 is: 1,961.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,646.86 : 5,471.79 = 1,307.16 : x
  2. Step 2: Convert to fraction form
    3,646.86/5,471.79 = 1,307.16/x
  3. Step 3: Cross multiply
    3,646.86x = 5,471.79 × 1,307.16
  4. Step 4: Simplify right side
    3,646.86x = 7,152,505.02
  5. Step 5: Solve for x
    x = 7,152,505.02/3,646.86
  6. Step 6: Final answer
    x = 1,961.28

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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.