Home / 2,047.75-3,071.63-1,398.13

Finding the Fourth Proportional to 2,047.75, 3,071.63 and 1,398.13

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Solution

The fourth proportional to 2,047.75, 3,071.63 and 1,398.13 is: 2,097.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,047.75 : 3,071.63 = 1,398.13 : x
  2. Step 2: Convert to fraction form
    2,047.75/3,071.63 = 1,398.13/x
  3. Step 3: Cross multiply
    2,047.75x = 3,071.63 × 1,398.13
  4. Step 4: Simplify right side
    2,047.75x = 4,294,538.05
  5. Step 5: Solve for x
    x = 4,294,538.05/2,047.75
  6. Step 6: Final answer
    x = 2,097.20

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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.