Home / 2,969.30-4,097.72-1,643.13

Finding the Fourth Proportional to 2,969.30, 4,097.72 and 1,643.13

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Solution

The fourth proportional to 2,969.30, 4,097.72 and 1,643.13 is: 2,267.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,969.30 : 4,097.72 = 1,643.13 : x
  2. Step 2: Convert to fraction form
    2,969.30/4,097.72 = 1,643.13/x
  3. Step 3: Cross multiply
    2,969.30x = 4,097.72 × 1,643.13
  4. Step 4: Simplify right side
    2,969.30x = 6,733,090.77
  5. Step 5: Solve for x
    x = 6,733,090.77/2,969.30
  6. Step 6: Final answer
    x = 2,267.57

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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.