Home / 1,604.98-2,212.80-1,316.46

Finding the Fourth Proportional to 1,604.98, 2,212.80 and 1,316.46

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Solution

The fourth proportional to 1,604.98, 2,212.80 and 1,316.46 is: 1,815.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,604.98 : 2,212.80 = 1,316.46 : x
  2. Step 2: Convert to fraction form
    1,604.98/2,212.80 = 1,316.46/x
  3. Step 3: Cross multiply
    1,604.98x = 2,212.80 × 1,316.46
  4. Step 4: Simplify right side
    1,604.98x = 2,913,062.69
  5. Step 5: Solve for x
    x = 2,913,062.69/1,604.98
  6. Step 6: Final answer
    x = 1,815.01

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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.