Home / 2,317.40-3,473.70-1,275.80

Finding the Fourth Proportional to 2,317.40, 3,473.70 and 1,275.80

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Solution

The fourth proportional to 2,317.40, 3,473.70 and 1,275.80 is: 1,912.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,317.40 : 3,473.70 = 1,275.80 : x
  2. Step 2: Convert to fraction form
    2,317.40/3,473.70 = 1,275.80/x
  3. Step 3: Cross multiply
    2,317.40x = 3,473.70 × 1,275.80
  4. Step 4: Simplify right side
    2,317.40x = 4,431,746.46
  5. Step 5: Solve for x
    x = 4,431,746.46/2,317.40
  6. Step 6: Final answer
    x = 1,912.38

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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.