Home / 1,677.06-2,313.56-1,283.40

Finding the Fourth Proportional to 1,677.06, 2,313.56 and 1,283.40

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Solution

The fourth proportional to 1,677.06, 2,313.56 and 1,283.40 is: 1,770.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,677.06 : 2,313.56 = 1,283.40 : x
  2. Step 2: Convert to fraction form
    1,677.06/2,313.56 = 1,283.40/x
  3. Step 3: Cross multiply
    1,677.06x = 2,313.56 × 1,283.40
  4. Step 4: Simplify right side
    1,677.06x = 2,969,222.90
  5. Step 5: Solve for x
    x = 2,969,222.90/1,677.06
  6. Step 6: Final answer
    x = 1,770.49

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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.