Home / 3,113.52-4,296.63-1,697.21

Finding the Fourth Proportional to 3,113.52, 4,296.63 and 1,697.21

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Solution

The fourth proportional to 3,113.52, 4,296.63 and 1,697.21 is: 2,342.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,113.52 : 4,296.63 = 1,697.21 : x
  2. Step 2: Convert to fraction form
    3,113.52/4,296.63 = 1,697.21/x
  3. Step 3: Cross multiply
    3,113.52x = 4,296.63 × 1,697.21
  4. Step 4: Simplify right side
    3,113.52x = 7,292,284.40
  5. Step 5: Solve for x
    x = 7,292,284.40/3,113.52
  6. Step 6: Final answer
    x = 2,342.13

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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.