Home / 2,013.87-2,780.35-1,316.46

Finding the Fourth Proportional to 2,013.87, 2,780.35 and 1,316.46

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Solution

The fourth proportional to 2,013.87, 2,780.35 and 1,316.46 is: 1,817.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,013.87 : 2,780.35 = 1,316.46 : x
  2. Step 2: Convert to fraction form
    2,013.87/2,780.35 = 1,316.46/x
  3. Step 3: Cross multiply
    2,013.87x = 2,780.35 × 1,316.46
  4. Step 4: Simplify right side
    2,013.87x = 3,660,218.46
  5. Step 5: Solve for x
    x = 3,660,218.46/2,013.87
  6. Step 6: Final answer
    x = 1,817.51

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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.